Remove an API that doesn't exist.

Apparently this was removed in Jelly Bean:
https://stackoverflow.com/q/24312632/632035. Keeping the decl in the
NDK just confuses people: https://stackoverflow.com/q/49646596/632035.

Test: make checkbuild
Bug: None
Change-Id: If549fcd8f4052e633646c4ce8a054a0bbcd8b2bf

native/android/libandroid.map.txt

@@ -152,7 +152,6 @@ LIBANDROID {
     AHardwareBuffer_unlock; # introduced=26
     ANativeWindow_acquire;
     ANativeWindow_fromSurface;
-    ANativeWindow_fromSurfaceTexture; # introduced-arm=13 introduced-mips=13 introduced-x86=13
     ANativeWindow_toSurface; # introduced=26
     ANativeWindow_getFormat;
     ANativeWindow_getHeight;