Bug 1558737 - Remove BUILD_FASTER define. r=nalexander

The last use of the define was removed in bug 1437942.

Differential Revision: https://phabricator.services.mozilla.com/D34669

--HG--
extra : moz-landing-system : lando

config/faster/rules.mk

@@ -58,10 +58,6 @@ endif
 
 .PHONY: FORCE
 
-# Extra define to trigger some workarounds. We should strive to limit the
-# use of those. As of writing the only one is in browser/locales/jar.mn.
-ACDEFINES += -DBUILD_FASTER
-
 # Files under the faster/ sub-directory, however, are not meant to use the
 # fallback
 $(TOPOBJDIR)/faster/%: ;

python/mozbuild/mozbuild/backend/common.py

@@ -453,7 +453,6 @@ class CommonBackend(BuildBackend):
         ab_cd = obj.config.substs['MOZ_UI_LOCALE'][0]
         pp.context.update(
             AB_CD=ab_cd,
-            BUILD_FASTER=1,
         )
         pp.out = JarManifestParser()
         try:

python/mozbuild/mozbuild/backend/tup.py

@@ -694,10 +694,6 @@ class TupBackend(CommonBackend):
             # TODO: AB_CD only exists in Makefiles at the moment.
             acdefines_flags += ' -DAB_CD=en-US'
 
-            # Use BUILD_FASTER to avoid CXXFLAGS/CPPFLAGS in
-            # toolkit/content/buildconfig.html
-            acdefines_flags += ' -DBUILD_FASTER=1'
-
             fh.write('MOZ_OBJ_ROOT = $(TUP_CWD)\n')
             fh.write('DIST = $(MOZ_OBJ_ROOT)/dist\n')
             fh.write('ACDEFINES = %s\n' % acdefines_flags)

python/mozbuild/mozbuild/faster_daemon.py

@@ -74,7 +74,6 @@ class Daemon(object):
         # http://searchfox.org/mozilla-central/rev/ad093e98f42338effe2e2513e26c3a311dd96422/config/faster/rules.mk#92-93
         defines.update({
             'AB_CD': 'en-US',
-            'BUILD_FASTER': '1',
         })
         return defines