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: I58c9e707554cd8274e4d8fb08fac62329a97be11
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
diff --git a/Android.mk b/Android.mk
index ba162f6..0991eeb 100644
--- a/Android.mk
+++ b/Android.mk
@@ -4,5 +4,4 @@
 LOCAL_SRC_FILES:= ping6.c
 LOCAL_MODULE := ping6
 LOCAL_MODULE_TAGS := eng
-LOCAL_STATIC_LIBRARIES := libcutils libc
 include $(BUILD_EXECUTABLE)