Bug 1900218 - Move MOZ_UPDATER from confvars.sh to moz.configure r=glandium

Differential Revision: https://phabricator.services.mozilla.com/D212367

build/moz.configure/update-programs.configure

@@ -9,6 +9,8 @@
 # ==============================================================
 @depends(build_project, target)
 def updater_default(build_project, target):
+    if build_project == "tools/update-programs":
+        return True
     return build_project != "mobile/android" and target.os != "iOS"
 
 

tools/update-programs/confvars.sh

@@ -4,6 +4,3 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 MOZ_BRANDING_DIRECTORY=browser/branding/unofficial
-
-# Build the updater by default.  Use --disable-updater to not.
-MOZ_UPDATER=1