media: Stop overriding LOCAL_HEADER_LIBRARIES

LOCAL_HEADER_LIBRARIES was getting overwritten on some modules,
resulting in display_headers not getting picked up.

Change-Id: Ia0263001025fd63e86ccef07f35193833ff71a23
diff --git a/libc2dcolorconvert/Android.mk b/libc2dcolorconvert/Android.mk
index 10dae8d..3ece003 100755
--- a/libc2dcolorconvert/Android.mk
+++ b/libc2dcolorconvert/Android.mk
@@ -15,7 +15,6 @@
         libhardware_headers
 
 LOCAL_SHARED_LIBRARIES := liblog libdl
-LOCAL_HEADER_LIBRARIES := libhardware_headers
 
 LOCAL_MODULE_TAGS := optional
 
diff --git a/mm-video-v4l2/vidc/vdec/Android.mk b/mm-video-v4l2/vidc/vdec/Android.mk
index 80198ee..7e0db14 100755
--- a/mm-video-v4l2/vidc/vdec/Android.mk
+++ b/mm-video-v4l2/vidc/vdec/Android.mk
@@ -114,9 +114,6 @@
 LOCAL_SHARED_LIBRARIES  += libqdMetaData
 LOCAL_SHARED_LIBRARIES  += libplatformconfig
 LOCAL_SHARED_LIBRARIES  += libnativewindow
-LOCAL_HEADER_LIBRARIES  := libnativebase_headers
-LOCAL_HEADER_LIBRARIES  += media_plugin_headers
-LOCAL_HEADER_LIBRARIES  += libhardware_headers
 
 LOCAL_SRC_FILES         := src/ts_parser.cpp
 LOCAL_STATIC_LIBRARIES  := libOmxVidcCommon
diff --git a/mm-video-v4l2/vidc/venc/Android.mk b/mm-video-v4l2/vidc/venc/Android.mk
index 76d1d22..b05de93 100644
--- a/mm-video-v4l2/vidc/venc/Android.mk
+++ b/mm-video-v4l2/vidc/venc/Android.mk
@@ -107,8 +107,6 @@
 # endif # ($(BOARD_USES_ADRENO), true)
 LOCAL_SHARED_LIBRARIES += libqdMetaData
 LOCAL_STATIC_LIBRARIES    := libOmxVidcCommon
-LOCAL_HEADER_LIBRARIES    := media_plugin_headers
-LOCAL_HEADER_LIBRARIES    += libhardware_headers
 
 LOCAL_SRC_FILES   := src/omx_video_base.cpp
 LOCAL_SRC_FILES   += src/omx_video_encoder.cpp
@@ -157,8 +155,6 @@
 LOCAL_SHARED_LIBRARIES += libutils
 endif
 
-LOCAL_HEADER_LIBRARIES    := media_plugin_headers
-
 # ifeq ($(BOARD_USES_ADRENO), true)
 LOCAL_SHARED_LIBRARIES    += libc2dcolorconvert
 # endif # ($(BOARD_USES_ADRENO), true)