Issue #21 - Remove use counters telemetry

This reverts Bug 968923 - Implement some equivalent of Chrome's use counters (on top of telemetry?)

For reference: https://bugzilla.mozilla.org/show_bug.cgi?id=968923

dom/base/moz.build

@@ -141,11 +141,9 @@ EXPORTS.mozilla += [
     'FeedWriterEnabled.h',
     'TextInputProcessor.h',
     'TimerClamping.h',
-    'UseCounter.h',
 ]
 
 EXPORTS.mozilla.dom += [
-    '!UseCounterList.h',
     'AnonymousContent.h',
     'Attr.h',
     'BarProps.h',
@@ -471,18 +469,5 @@ if CONFIG['MOZ_PHOENIX'] or CONFIG['MOZ_XULRUNNER']:
 if CONFIG['MOZ_X11']:
     CXXFLAGS += CONFIG['TK_CFLAGS']
 
-GENERATED_FILES += [
-    'PropertyUseCounterMap.inc',
-    'UseCounterList.h',
-]
-
-countermap = GENERATED_FILES['PropertyUseCounterMap.inc']
-countermap.script = 'gen-usecounters.py:property_map'
-countermap.inputs = ['UseCounters.conf']
-
-counterlist = GENERATED_FILES['UseCounterList.h']
-counterlist.script = 'gen-usecounters.py:use_counter_list'
-counterlist.inputs = ['UseCounters.conf']
-
 if CONFIG['GNU_CXX']:
     CXXFLAGS += ['-Wno-error=shadow']