diff --git a/mobile/android/app/build.gradle b/mobile/android/app/build.gradle
index 4c1f434683d2..81c903f8fb1d 100644
--- a/mobile/android/app/build.gradle
+++ b/mobile/android/app/build.gradle
@@ -355,10 +355,6 @@ android.applicationVariants.all { variant ->
     }
 }
 
-android.applicationVariants.all { variant ->
-    configureVariantWithJNIWrappers(variant, "Fennec")
-}
-
 apply plugin: 'spoon'
 
 spoon {
diff --git a/mobile/android/base/Makefile.in b/mobile/android/base/Makefile.in
index c4d2d1bad628..e1b4e180ae2d 100644
--- a/mobile/android/base/Makefile.in
+++ b/mobile/android/base/Makefile.in
@@ -25,8 +25,6 @@ GARBAGE += \
 
 GARBAGE_DIRS += classes db jars res sync services generated
 
-gradle_dir := $(topobjdir)/gradle/build/mobile/android
-
 # The bootclasspath is functionally identical to the classpath, but allows the
 # classes given to redefine classes in core packages, such as java.lang.
 # android.jar is here as it provides Android's definition of the Java Standard
@@ -143,7 +141,6 @@ uniq = $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
 java_bundled_libs := $(call uniq,$(java_bundled_libs))
 java_bundled_libs := $(subst $(NULL) ,:,$(strip $(java_bundled_libs)))
 
-ifndef MOZ_BUILD_MOBILE_ANDROID_WITH_GRADLE
 GECKOVIEW_JARS = \
   constants.jar \
   gecko-R.jar \
@@ -169,6 +166,8 @@ ifdef MOZ_ANDROID_MMA
 GECKOVIEW_JARS += gecko-thirdparty-leanplum_sdk.jar
 endif
 
+geckoview_jars_classpath := $(subst $(NULL) ,:,$(strip $(GECKOVIEW_JARS)))
+
 FENNEC_JARS = \
   gecko-browser.jar \
   gecko-thirdparty.jar \
@@ -183,17 +182,6 @@ ifdef MOZ_ANDROID_MLS_STUMBLER
 FENNEC_JARS += ../stumbler/stumbler.jar
 endif
 
-else # MOZ_BUILD_MOBILE_ANDROID_WITH_GRADLE
-
-GECKOVIEW_JARS := $(gradle_dir)/geckoview/intermediates/bundles/debug/classes.jar
-FENNEC_JARS := $(gradle_dir)/app/intermediates/packaged/officialPhoton/debug/classes.jar
-
-$(GECKOVIEW_JARS): .gradle.deps
-$(FENNEC_JARS): .gradle.deps
-
-endif # MOZ_BUILD_MOBILE_ANDROID_WITH_GRADLE
-
-geckoview_jars_classpath := $(subst $(NULL) ,:,$(strip $(GECKOVIEW_JARS)))
 
 # All the jars we're compiling from source. (not to be confused with
 # java_bundled_libs, which holds the jars which we're including as binaries).
@@ -240,30 +228,22 @@ endif # MOZ_INSTALL_TRACKING
 
 library_jars := $(subst $(NULL) ,:,$(strip $(library_jars)))
 
+gradle_dir := $(topobjdir)/gradle/build/mobile/android
+
 ifdef MOZ_BUILD_MOBILE_ANDROID_WITH_GRADLE
 .gradle.deps: .aapt.deps FORCE
 	@$(TOUCH) $@
 	$(topsrcdir)/mach gradle \
-		geckoview:generateJNIWrappersForGeneratedRelease \
-		app:generateJNIWrappersForFennecOfficialPhotonDebug \
-		app:assembleOfficialPhotonDebug \
-		app:assembleOfficialPhotonDebugAndroidTest \
-		-x lint
+		app:assembleOfficialPhotonDebug app:assembleOfficialPhotonDebugAndroidTest -x lint
 
 classes.dex: .gradle.deps
 	$(REPORT_BUILD)
 	cp $(gradle_dir)/app/intermediates/transforms/dex/officialPhoton/debug/folders/1000/1f/main/classes.dex $@
-
-GeneratedJNIWrappers.cpp GeneratedJNIWrappers.h GeneratedJNINatives.h : .gradle.deps
-	$(REPORT_BUILD)
-
-FennecJNIWrappers.cpp FennecJNIWrappers.h FennecJNINatives.h: .gradle.deps
-	$(REPORT_BUILD)
-
 else
 classes.dex: .proguard.deps
 	$(REPORT_BUILD)
 	$(DX) --dex --output=classes.dex --force-jumbo jars-proguarded
+endif
 
 ifdef MOZ_DISABLE_PROGUARD
   PROGUARD_PASSES=0
@@ -348,8 +328,6 @@ FennecJNIWrappers.cpp: $(ANNOTATION_PROCESSOR_JAR_FILES) $(FENNEC_JARS)
 		org.mozilla.gecko.annotationProcessors.AnnotationProcessor \
 		Fennec $(FENNEC_JARS)
 
-endif # MOZ_BUILD_MOBILE_ANDROID_WITH_GRADLE
-
 include $(topsrcdir)/config/rules.mk
 
 not_android_res_files := \
@@ -558,6 +536,7 @@ endif
 #   GeneratedJNIWrappers.h and GeneratedJNINatives.h
 # FennecJNIWrappers.cpp target also generates
 #   FennecJNIWrappers.h and FennecJNINatives.h
+ifndef MOZ_BUILD_MOBILE_ANDROID_WITH_GRADLE
 
 # List of build flags used by auto-generated JNI bindings (through the
 # @BuildFlag annotation in Java). For example, add a "MOZ_FOO \" line to this
@@ -607,12 +586,11 @@ libs:: FennecJNIWrappers.cpp
 	  echo '* Repeat the build, and check in any changes.       *' && \
 	  echo '*****************************************************' && \
 	  exit 1)
+endif
 
 libs:: classes.dex
 	$(INSTALL) classes.dex $(FINAL_TARGET)
 
-ifndef MOZ_BUILD_MOBILE_ANDROID_WITH_GRADLE
-
 # Generate Java binder interfaces from AIDL files.
 GECKOVIEW_AIDLS = \
   org/mozilla/gecko/IGeckoEditableChild.aidl \
@@ -645,5 +623,3 @@ fennec_aidl_targets := $(addprefix $(fennec_aidl_target_path)/,$(patsubst %.aidl
 $(fennec_aidl_targets): $(fennec_aidl_target_path)/%.java: $(fennec_aidl_src_path)/%.aidl
 	@echo "Processing AIDL: $< => $@"
 	$(AIDL) -p$(ANDROID_SDK)/framework.aidl -I$(fennec_aidl_src_path) -I$(geckoview_aidl_src_path) -o$(fennec_aidl_target_path) $<
-
-endif # MOZ_BUILD_MOBILE_ANDROID_WITH_GRADLE
diff --git a/mobile/android/geckoview/build.gradle b/mobile/android/geckoview/build.gradle
index cce726735345..1dce2820235a 100644
--- a/mobile/android/geckoview/build.gradle
+++ b/mobile/android/geckoview/build.gradle
@@ -167,10 +167,6 @@ android.libraryVariants.all { variant ->
     }
 }
 
-android.libraryVariants.all { variant ->
-    configureVariantWithJNIWrappers(variant, "Generated")
-}
-
 apply plugin: 'maven'
  
 uploadArchives {
diff --git a/mobile/android/gradle/with_gecko_binaries.gradle b/mobile/android/gradle/with_gecko_binaries.gradle
index 7d70397aace2..630826822106 100644
--- a/mobile/android/gradle/with_gecko_binaries.gradle
+++ b/mobile/android/gradle/with_gecko_binaries.gradle
@@ -121,33 +121,3 @@ ext.configureVariantWithGeckoBinaries = { variant ->
     android.sourceSets."${sourceSet}".assets.srcDir syncAssetsFromDistDir.destinationDir
     android.sourceSets."${sourceSet}".jniLibs.srcDir syncLibsFromDistDir.destinationDir
 }
-
-ext.configureVariantWithJNIWrappers = { variant, module ->
-
-    def jarTask = tasks.findByName("jar${variant.name.capitalize()}Classes")
-    if (jarTask == null) {
-        jarTask = tasks.findByName("package${variant.name.capitalize()}JarArtifact")
-    }
-    if (jarTask == null) {
-        throw new GradleException("Jar task not found: \"jar${variant.name.capitalize()}Classes\"\t\"package${variant.name.capitalize()}JarArtifact\"" )
-    }
-    if (jarTask.outputs.files.size() != 1) {
-        throw new GradleException("Jar task output multiple files other than one single jar")
-    }
-
-    def wrapperTask = task("generateJNIWrappersFor${module}${variant.name.capitalize()}", type: JavaExec) {
-        classpath = variant.javaCompile.classpath
-        // Include android.jar.
-        classpath variant.javaCompile.options.bootClasspath
-        classpath "${topobjdir}/build/annotationProcessors/annotationProcessors.jar"
-        main = 'org.mozilla.gecko.annotationProcessors.AnnotationProcessor'
-        args module
-        args jarTask.outputs.files.iterator().next()
-
-        workingDir "${topobjdir}/mobile/android/base"
-
-        dependsOn jarTask
-    }
-
-    variant.assemble.dependsOn wrapperTask
-}