Rollback of commit 900202fe4418490abca96afd7ebf2b92268be244.

*** Reason for rollback ***

Rollback, broke Bazel bootstrap on OS X.

--
MOS_MIGRATED_REVID=132422954
diff --git a/compile.sh b/compile.sh
index f8940e2..53fc412 100755
--- a/compile.sh
+++ b/compile.sh
@@ -91,7 +91,7 @@
 
 if [[ $PLATFORM == "darwin" ]] && \
     xcodebuild -showsdks 2> /dev/null | grep -q '\-sdk iphonesimulator'; then
-  EXTRA_BAZEL_ARGS="${EXTRA_BAZEL_ARGS-} --define IPHONE_SDK=1 --cpu=darwin_x86_64 --ios_cpu=x86_64"
+  EXTRA_BAZEL_ARGS="${EXTRA_BAZEL_ARGS-} --define IPHONE_SDK=1"
 fi
 source scripts/bootstrap/bootstrap.sh