display: Remove genlock usage

genlock is no-op from Android 4.2 onwards since the sync framework
is used for explicit synchronization.

Change-Id: Idd1df589516534a683e0fa1ef0cfbb7f0e411f67
diff --git a/libhwcomposer/Android.mk b/libhwcomposer/Android.mk
index 0ca7ca1..b1ee2da 100644
--- a/libhwcomposer/Android.mk
+++ b/libhwcomposer/Android.mk
@@ -6,7 +6,7 @@
 LOCAL_MODULE_PATH             := $(TARGET_OUT_SHARED_LIBRARIES)/hw
 LOCAL_MODULE_TAGS             := optional
 LOCAL_C_INCLUDES              := $(common_includes) $(kernel_includes)
-LOCAL_SHARED_LIBRARIES        := $(common_libs) libEGL liboverlay libgenlock \
+LOCAL_SHARED_LIBRARIES        := $(common_libs) libEGL liboverlay \
                                  libexternal libqdutils libhardware_legacy \
                                  libdl libmemalloc libqservice libsync \
                                  libbinder libmedia