Disable oprofile host tools builds.

Need host prebuilt for libiconv.a because libintl.a is linked with it.
Bug: 3439321

Change-Id: Ifabae6a0735f3d98287069e7b881a88c4933c56b
diff --git a/common.mk b/common.mk
index 62f215a..8ecf469 100644
--- a/common.mk
+++ b/common.mk
@@ -32,12 +32,13 @@
 common_target_cflags := $(common_cflags)
 
 # Common host flags
-ifeq ($(strip $(TARGET_ARCH)),arm)
-toolchain := prebuilt/$(HOST_PREBUILT_TAG)/toolchain/arm-linux-androideabi-4.4.x
-HAVE_LIBBFD := true
-else
+# FIXME: Temporarily disabled until we get libiconv.a in the prebuilts.
+#ifeq ($(strip $(TARGET_ARCH)),arm)
+#toolchain := prebuilt/$(HOST_PREBUILT_TAG)/toolchain/arm-linux-androideabi-4.4.x
+#HAVE_LIBBFD := true
+#else
 HAVE_LIBBFD := false
-endif
+#endif
 
 ifeq ($(HAVE_LIBBFD),true)
 common_host_c_includes := $(common_c_includes) $(toolchain)/include