[mutter] cogl: Remove some left over KMS backend stuff

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 00a5523667f91f15ca61d67fc0451b7b5badd83b
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu May 3 21:03:37 2018 +0200

    cogl: Remove some left over KMS backend stuff

 clutter/clutter/egl/clutter-egl.h |  5 -----
 cogl/cogl/cogl.symbols            |  6 ------
 cogl/configure.ac                 | 33 ---------------------------------
 3 files changed, 44 deletions(-)
---
diff --git a/clutter/clutter/egl/clutter-egl.h b/clutter/clutter/egl/clutter-egl.h
index 83b021343..0a4ab05d9 100644
--- a/clutter/clutter/egl/clutter-egl.h
+++ b/clutter/clutter/egl/clutter-egl.h
@@ -87,11 +87,6 @@ EGLDisplay      clutter_egl_display             (void);
 CLUTTER_AVAILABLE_IN_1_6
 EGLDisplay      clutter_egl_get_egl_display     (void);
 
-#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
-CLUTTER_AVAILABLE_IN_1_18
-void            clutter_egl_set_kms_fd          (int fd);
-#endif
-
 CLUTTER_AVAILABLE_IN_1_20
 void            clutter_egl_freeze_master_clock (void);
 CLUTTER_AVAILABLE_IN_1_20
diff --git a/cogl/cogl/cogl.symbols b/cogl/cogl/cogl.symbols
index c1cd50e07..d7f700012 100644
--- a/cogl/cogl/cogl.symbols
+++ b/cogl/cogl/cogl.symbols
@@ -415,12 +415,6 @@ cogl_is_texture_rectangle
 cogl_is_texture_2d
 cogl_is_texture_3d
 
-#ifdef COGL_HAS_EGL_PLATFORM_KMS_SUPPORT
-cogl_kms_display_queue_modes_reset
-cogl_kms_display_set_layout
-cogl_kms_renderer_get_kms_fd
-#endif
-
 cogl_material_alpha_func_get_type
 cogl_material_copy
 cogl_material_filter_get_type
diff --git a/cogl/configure.ac b/cogl/configure.ac
index 62f77555c..3a935b040 100644
--- a/cogl/configure.ac
+++ b/cogl/configure.ac
@@ -632,39 +632,6 @@ AM_CONDITIONAL(SUPPORT_GLX, [test "x$SUPPORT_GLX" = "xyes"])
 
 EGL_PLATFORM_COUNT=0
 
-AC_ARG_ENABLE(
-  [kms-egl-platform],
-  [AC_HELP_STRING([--enable-kms-egl-platform=@<:@no/yes@:>@], [Enable support for the KMS egl platform 
@<:@default=no@:>@])],
-  [],
-  enable_kms_egl_platform=yes
-)
-AS_IF([test "x$enable_kms_egl_platform" = "xyes"],
-      [
-        EGL_PLATFORM_COUNT=$((EGL_PLATFORM_COUNT+1))
-        NEED_EGL=yes
-        EGL_PLATFORMS="$EGL_PLATFORMS kms"
-
-        PKG_CHECK_EXISTS([gbm],
-                         [
-                           COGL_PKG_REQUIRES="$COGL_PKG_REQUIRES gbm"
-                           COGL_PKG_REQUIRES="$COGL_PKG_REQUIRES libdrm"
-                         ],
-                         [AC_MSG_ERROR([Unable to locate required libgbm library for the KMS egl platform])])
-
-        GBM_VERSION=`$PKG_CONFIG --modversion gbm`
-        GBM_MAJOR=`echo $GBM_VERSION | cut -d'.' -f1`
-        GBM_MINOR=`echo $GBM_VERSION | cut -d'.' -f2`
-        GBM_MICRO=`echo $GBM_VERSION | cut -d'.' -f3 | sed 's/-.*//'`
-
-        AC_DEFINE_UNQUOTED([COGL_GBM_MAJOR], [$GBM_MAJOR], [The major version for libgbm])
-        AC_DEFINE_UNQUOTED([COGL_GBM_MINOR], [$GBM_MINOR], [The minor version for libgbm])
-        AC_DEFINE_UNQUOTED([COGL_GBM_MICRO], [$GBM_MICRO], [The micro version for libgbm])
-
-        COGL_DEFINES_SYMBOLS="$COGL_DEFINES_SYMBOLS COGL_HAS_EGL_PLATFORM_KMS_SUPPORT"
-      ])
-AM_CONDITIONAL(SUPPORT_EGL_PLATFORM_KMS,
-               [test "x$enable_kms_egl_platform" = "xyes"])
-
 AC_ARG_ENABLE(
   [wayland-egl-server],
   [AC_HELP_STRING([--enable-wayland-egl-server=@<:@no/yes@:>@], [Enable server side wayland support 
@<:@default=no@:>@])],