Issue #2112 - Part 10: Remove remaining Stylo/Servo includes and code

Some classes have been marked for removal/merging, macros used for forwarding/casting were moved to DeprecatedUtils.h.

layout/style/moz.build

@@ -81,21 +81,12 @@ EXPORTS.mozilla += [
     'CSSVariableValues.h',
     'DeclarationBlock.h',
     'DeclarationBlockInlines.h',
-    'DocumentStyleRootIterator.h',
+    'DeprecatedUtils.h',
     'HandleRefPtr.h',
     'IncrementalClearCOMRuleArray.h',
     'LayerAnimationInfo.h',
     'RuleNodeCacheConditions.h',
     'RuleProcessorCache.h',
-    'ServoBindingList.h',
-    'ServoBindings.h',
-    'ServoBindingTypes.h',
-    'ServoDeclarationBlock.h',
-    'ServoElementSnapshot.h',
-    'ServoStyleSet.h',
-    'ServoStyleSheet.h',
-    'ServoTypes.h',
-    'ServoUtils.h',
     'SheetType.h',
     'StyleAnimationValue.h',
     'StyleComplexColor.h',
@@ -144,7 +135,6 @@ UNIFIED_SOURCES += [
     'CSSVariableResolver.cpp',
     'CSSVariableValues.cpp',
     'Declaration.cpp',
-    'DocumentStyleRootIterator.cpp',
     'ErrorReporter.cpp',
     'FontFace.cpp',
     'FontFaceSet.cpp',
@@ -189,11 +179,6 @@ UNIFIED_SOURCES += [
     'nsTransitionManager.cpp',
     'RuleNodeCacheConditions.cpp',
     'RuleProcessorCache.cpp',
-    'ServoBindings.cpp',
-    'ServoDeclarationBlock.cpp',
-    'ServoElementSnapshot.cpp',
-    'ServoStyleSet.cpp',
-    'ServoStyleSheet.cpp',
     'StyleAnimationValue.cpp',
     'StyleRule.cpp',
     'StyleSheet.cpp',