Remove Android.mk for OEMCrypto ref code

Merge from Widevine repo of http://go/wvgerrit/101905

The reference OEMCrypto should not be built as part of Android.

Test: Builds
Bug: 146361995
Change-Id: Ic25e6e567fcac519636f64dabc0d59b3df78990e

libwvdrmengine/oemcrypto/ref/Android.mk

@@ -1,45 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:= \
-    src/keys.cpp \
-    src/oemcrypto_auth_ref.cpp \
-    src/oemcrypto_engine_device_properties.cpp \
-    src/oemcrypto_engine_ref.cpp \
-    src/oemcrypto_key_ref.cpp \
-    src/oemcrypto_keybox_ref.cpp \
-    src/oemcrypto_keybox_testkey.cpp \
-    src/oemcrypto_ref.cpp \
-    src/oemcrypto_rsa_key_shared.cpp \
-    src/oemcrypto_session.cpp \
-    src/oemcrypto_session_key_table.cpp \
-    src/oemcrypto_usage_table_ref.cpp \
-    src/wvcrc.cpp \
-
-LOCAL_MODULE_TAGS := tests
-
-LOCAL_C_INCLUDES += \
-    $(LOCAL_PATH)/../include \
-    $(LOCAL_PATH)/src \
-    vendor/widevine/libwvdrmengine/cdm/util/include \
-
-LOCAL_SHARED_LIBRARIES := \
-    libbase \
-    libcrypto \
-    libdl \
-    liblog \
-    libmedia \
-    libstagefright_foundation \
-    libutils \
-    libz \
-
-LOCAL_STATIC_LIBRARIES := \
-    libcdm_utils \
-
-# Proprietary modules are put in vendor/lib instead of /system/lib.
-LOCAL_PROPRIETARY_MODULE := true
-LOCAL_MODULE := liboemcrypto
-
-include $(BUILD_SHARED_LIBRARY)
-