Remove static libs from link command

Dynamic versions are found automatically. When USE_PT_GNU_EH_FRAME is
enabled libc.a has unresolved __executable_start which is not provided
by bfd linker when -pie option used.
See here: https://android-review.googlesource.com/#/c/42250

Change-Id: I4bfd7c319cece3306b880b49f9f52c622054588c
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
diff --git a/Android.mk b/Android.mk
index 2053e22..b977022 100644
--- a/Android.mk
+++ b/Android.mk
@@ -3,5 +3,4 @@
 include $(CLEAR_VARS)
 LOCAL_SRC_FILES:= ping.c
 LOCAL_MODULE := ping
-LOCAL_STATIC_LIBRARIES := libcutils libc
 include $(BUILD_EXECUTABLE)