Remove unused -I of external/safe-iop.

Bug: http://b/25224572
Test: builds
Change-Id: I90c35a38d69f533b8f60c2f357f0e5e36596d050
diff --git a/libpixelflinger/Android.mk b/libpixelflinger/Android.mk
index c7306cd..14883f4 100644
--- a/libpixelflinger/Android.mk
+++ b/libpixelflinger/Android.mk
@@ -72,8 +72,7 @@
 LOCAL_SRC_FILES_mips64 := $(PIXELFLINGER_SRC_FILES_mips64)
 LOCAL_CFLAGS := $(PIXELFLINGER_CFLAGS)
 LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-LOCAL_C_INCLUDES += $(LOCAL_EXPORT_C_INCLUDE_DIRS) \
-		    external/safe-iop/include
+LOCAL_C_INCLUDES += $(LOCAL_EXPORT_C_INCLUDE_DIRS)
 LOCAL_SHARED_LIBRARIES := libcutils liblog libutils
 
 include $(BUILD_SHARED_LIBRARY)