CMake: remove obsolete evr feature from build system

evr (Enhanced Video Renderer) has a configure-time check, command line
option and feature toggle, but this is unused: the windows platform
plugin unconditionally uses evr.
Removing this obsolete feature to clean things up.

Pick-to: 6.8 6.9
Change-Id: I992303a230c9c58f6a2632330445f46709d829c9
Reviewed-by: Timur Pocheptsov <[email protected]>

Author: timblechmann

config.tests/evr/CMakeLists.txt

@@ -5,4 +5,3 @@ Multimedia options:
   -no-gstreamer ........ Disable support for GStreamer
   -gstreamer [version] . Enable GStreamer support [auto]
                          With no parameter, 1.0 is tried first, then 0.10.
-  -evr ................. Enables EVR in WMF [auto]

config.tests/evr/main.cpp

@@ -91,12 +91,6 @@ qt_find_package(VAAPI COMPONENTS VA DRM PROVIDED_TARGETS VAAPI::VAAPI MODULE_NAM
 
 #### Tests
 
-
-qt_config_compile_test("evr"
-                   LABEL "evr.h"
-                   PROJECT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../../config.tests/evr"
-)
-
 qt_config_compile_test("gpu_vivante"
                    LABEL "Vivante GPU"
                    PROJECT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../../config.tests/gpu_vivante"
@@ -160,10 +154,7 @@ qt_feature("videotoolbox" PUBLIC PRIVATE
     LABEL "VideoToolbox"
     CONDITION AVFoundation_FOUND
 )
-qt_feature("evr" PUBLIC PRIVATE
-    LABEL "evr.h"
-    CONDITION WIN32 AND TEST_evr
-)
+
 qt_feature("gstreamer" PRIVATE
     LABEL "QtMM GStreamer plugin"
     CONDITION TARGET GStreamer::GStreamer AND TARGET GStreamer::App AND TARGET GStreamer::Play

config_help.txt

@@ -2,7 +2,6 @@
 # SPDX-License-Identifier: BSD-3-Clause
 
 qt_commandline_option(alsa TYPE boolean)
-qt_commandline_option(evr TYPE boolean)
 qt_commandline_option(wmf TYPE boolean)
 qt_commandline_option(gstreamer TYPE optionalString VALUES no yes)
 qt_commandline_option(pulseaudio TYPE boolean)