Remove superfluous OpenSSL include paths.

The libcrypto and libssl modules (and their respective static and host
versions) use LOCAL_EXPORT_C_INCLUDE_DIRS thus just including the module
is sufficient.

Change-Id: Ic9fa10cdda20c911f83019f693924180f26c6321
diff --git a/self-extractors/nvidia/staging/keymaster/Android.mk b/self-extractors/nvidia/staging/keymaster/Android.mk
index 43c0f5e..bc80f3f 100644
--- a/self-extractors/nvidia/staging/keymaster/Android.mk
+++ b/self-extractors/nvidia/staging/keymaster/Android.mk
@@ -28,7 +28,6 @@
 
 LOCAL_C_INCLUDES := \
 	libcore/include \
-	external/openssl/include \
 	$(LOCAL_PATH)/../security/tf_sdk/include
 
 LOCAL_CFLAGS := -fvisibility=hidden -Wall -Werror