no-slp-vectorize no longer required

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index be6e7797822f7fb52c246069e677a5113bcfdeb9..4381bc577f2ab751e330761d1bd00797e3fd47a0 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -3642,14 +3642,6 @@
                   '-Wl,--warn-shared-textrel',
                 ],
               }],
-              ['clang==1', {
-                'cflags!': [
-                  '-fno-ident',
-                ],
-                # TODO(thakis): Remove once http://llvm.org/PR20354 is fixed
-                # and the fix is in chromium.
-                'cflags': [ '-fno-slp-vectorize', ],
-              }],
               ['profiling==1', {
                 'cflags': [
                   '-fno-omit-frame-pointer',
@@ -4783,11 +4775,6 @@
                 # cfe-dev discussion.
                 '-Wno-selector-type-mismatch',
               ],
-              'OTHER_CFLAGS': [
-                # TODO(thakis): Remove once http://llvm.org/PR20354 is fixed
-                # and the fix is in chromium.
-                '-fno-slp-vectorize',
-              ],
 
               'conditions': [
                 ['clang_xcode==0', {