Remove unnecessary Android code

[rosetta-jpn]

This patches deletes

• vaGetDisplay() in va_android.h
• VA_DISPLAY_ANDROID in va_backend.h
• libva-android in Android.bp

[rosetta-jpn]

@XinfengZhang PTAL!

libva-intel-media-driver should be updated too like below.

diff --git a/Tools/MediaDriverTools/Android/mk/cmrt.tpl b/Tools/MediaDriverTools/Android/mk/cmrt.tpl
index 470cc64b3..84814cf01 100644
--- a/Tools/MediaDriverTools/Android/mk/cmrt.tpl
+++ b/Tools/MediaDriverTools/Android/mk/cmrt.tpl
@@ -53,6 +53,6 @@ LOCAL_MODULE := libigfxcmrt
 LOCAL_PROPRIETARY_MODULE := true
 
 LOCAL_LDLIBS := -lc -lva -lva-android
-LOCAL_SHARED_LIBRARIES := libc libdl libcutils liblog libutils libm libva libva-android
+LOCAL_SHARED_LIBRARIES := libc libdl libcutils liblog libutils libm libva
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/cmrtlib/Android.bp b/cmrtlib/Android.bp
index cb74de394..347d8e8de 100644
--- a/cmrtlib/Android.bp
+++ b/cmrtlib/Android.bp
@@ -71,7 +71,6 @@ cc_library_shared {
         "libutils",
         "libm",
         "libva",
-        "libva-android",
     ],
     vendor: true,
     enabled: false,

[XinfengZhang]

LGTM, but we need keep the PR here for some time, to ensure no one will be impacted by this PR, because it will force android user switch to drm path.

[rosetta-jpn]

Sure.

Although I am not hurry at all on this patch, how long shall we wait?

[XinfengZhang]

because it is non-backward compatible change(only for android), we are assuming that there are no one are using old interface, if this assumption is incorrect, we have to abandon this PR. so, we need to be careful, lets wait 2 weeks to check whether there is any objections.