Bug 1293493 - Remove mach rage since it was unused; r=ted

We've had 4 submissions in 2017. jgriffin and I agreed that it was a
failed experiment and we should either abandon it or figure out how
to increase participation. Since nobody is available to improve it,
I'm inclined to just delete it. If we want to bring it back, it is
always in version control.

MozReview-Commit-ID: AizkZxjQ8IJ

--HG--
extra : rebase_source : 0e29058cfc909fb51fc56fa9b46c0e0a6eef0bf9

tools/mach_commands.py

@@ -9,7 +9,6 @@ import os
 import stat
 import platform
 import errno
-import subprocess
 
 from mach.decorators import (
     CommandArgument,
@@ -80,59 +79,6 @@ class UUIDProvider(object):
             print(('  { ' + '0x%s, ' * 7 + '0x%s } }') % pairs)
 
 
-@CommandProvider
-class RageProvider(MachCommandBase):
-    @Command('rage', category='misc',
-             description='Express your frustration')
-    def rage(self):
-        """Have a bad experience developing Firefox? Run this command to
-        express your frustration.
-
-        This command will open your default configured web browser to a short
-        form where you can submit feedback. Just close the tab when done.
-        """
-        import getpass
-        import urllib
-        import webbrowser
-
-        # Try to resolve the current user.
-        user = None
-        with open(os.devnull, 'wb') as null:
-            if os.path.exists(os.path.join(self.topsrcdir, '.hg')):
-                try:
-                    user = subprocess.check_output(['hg', 'config',
-                                                    'ui.username'],
-                                                   cwd=self.topsrcdir,
-                                                   stderr=null)
-
-                    i = user.find('<')
-                    if i >= 0:
-                        user = user[i + 1:-2]
-                except subprocess.CalledProcessError:
-                    pass
-            elif os.path.exists(os.path.join(self.topsrcdir, '.git')):
-                try:
-                    user = subprocess.check_output(['git', 'config', '--get',
-                                                    'user.email'],
-                                                   cwd=self.topsrcdir,
-                                                   stderr=null)
-                except subprocess.CalledProcessError:
-                    pass
-
-        if not user:
-            try:
-                user = getpass.getuser()
-            except Exception:
-                pass
-
-        url = 'https://docs.google.com/a/mozilla.com/forms/d/e/1FAIpQLSeDVC3IXJu5d33Hp_ZTCOw06xEUiYH1pBjAqJ1g_y63sO2vvA/viewform'  # noqa: E501
-        if user:
-            url += '?entry.1281044204=%s' % urllib.quote(user)
-
-        print('Please leave your feedback in the opened web form')
-        webbrowser.open_new_tab(url)
-
-
 @CommandProvider
 class PastebinProvider(object):
     @Command('pastebin', category='misc',