omxil: Remove the header check for the iomx module

Building the iomx version of the omxil module itself doesn't
require the private headers any longer, they're only necessary
when building the iomx wrapper code (which should be built by the
NDK makefile instead).
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
(cherry picked from commit 8acfed11dc97ae97353f6f982323f9fdc86c0eb8)

configure.ac

@@ -2305,18 +2305,7 @@ AC_ARG_ENABLE(iomx,
   [  --enable-iomx           iomx codec module (default disabled)])
 if test "${enable_iomx}" = "yes"
 then
-  CPPFLAGS_save="${CPPFLAGS}"
-  CPPFLAGS="${CPPFLAGS} -I${srcdir}/modules/codec/omxil" # For the OMX headers
-  AC_LANG_PUSH([C++])
-  AC_CHECK_HEADER(media/stagefright/OMXClient.h, [
-    VLC_ADD_PLUGIN([iomx])
-    VLC_ADD_CXXFLAGS([iomx], [-fno-exceptions -fno-rtti])
-    VLC_ADD_LIBS([iomx], [-lstagefright -lmedia -lutils -lbinder])
-  ], [
-    AC_MSG_ERROR("Could not find IOMX headers")
-  ])
-  AC_LANG_POP([C++])
-  CPPFLAGS="${CPPFLAGS_save}"
+  VLC_ADD_PLUGIN([iomx])
 fi
 
 dnl