[mutter/wip/carlosg/drop-caps: 15/16] backends: Drop rt-scheduler configuration key

[Carlos Garnacho <carlosg src gnome org>]

commit a795e6ee1a71edd92e23b528c87869733778a7b0
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Nov 8 15:23:30 2019 +0100

    backends: Drop rt-scheduler configuration key
    
    This is no longer an experimental feature. Even if we wanted to,
    GSettings spawns threads, which we want to avoid until we drop
    capabilities.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/923

 data/org.gnome.mutter.gschema.xml.in | 4 ----
 src/backends/meta-settings-private.h | 3 +--
 src/backends/meta-settings.c         | 2 --
 3 files changed, 1 insertion(+), 8 deletions(-)
---
diff --git a/data/org.gnome.mutter.gschema.xml.in b/data/org.gnome.mutter.gschema.xml.in
index 7d36c06bd..230536c92 100644
--- a/data/org.gnome.mutter.gschema.xml.in
+++ b/data/org.gnome.mutter.gschema.xml.in
@@ -120,10 +120,6 @@
                                         framebuffers instead of window content,
                                         to manage HiDPI monitors. Does not
                                         require a restart.
-        • “rt-scheduler”              — makes mutter request a low priority
-                                        real-time scheduling. The executable
-                                        or user must have CAP_SYS_NICE.
-                                        Requires a restart.
         • “autostart-xwayland”        — initializes Xwayland lazily if there are
                                         X11 clients. Requires restart.
       </description>
diff --git a/src/backends/meta-settings-private.h b/src/backends/meta-settings-private.h
index 7d610d5b4..4161884f6 100644
--- a/src/backends/meta-settings-private.h
+++ b/src/backends/meta-settings-private.h
@@ -33,8 +33,7 @@ typedef enum _MetaExperimentalFeature
   META_EXPERIMENTAL_FEATURE_NONE = 0,
   META_EXPERIMENTAL_FEATURE_SCALE_MONITOR_FRAMEBUFFER = (1 << 0),
   META_EXPERIMENTAL_FEATURE_KMS_MODIFIERS  = (1 << 1),
-  META_EXPERIMENTAL_FEATURE_RT_SCHEDULER = (1 << 2),
-  META_EXPERIMENTAL_FEATURE_AUTOSTART_XWAYLAND  = (1 << 3),
+  META_EXPERIMENTAL_FEATURE_AUTOSTART_XWAYLAND  = (1 << 2),
 } MetaExperimentalFeature;
 
 #define META_TYPE_SETTINGS (meta_settings_get_type ())
diff --git a/src/backends/meta-settings.c b/src/backends/meta-settings.c
index 66f826f51..e5d44a768 100644
--- a/src/backends/meta-settings.c
+++ b/src/backends/meta-settings.c
@@ -264,8 +264,6 @@ experimental_features_handler (GVariant *features_variant,
         features |= META_EXPERIMENTAL_FEATURE_SCALE_MONITOR_FRAMEBUFFER;
       else if (g_str_equal (feature, "kms-modifiers"))
         features |= META_EXPERIMENTAL_FEATURE_KMS_MODIFIERS;
-      else if (g_str_equal (feature, "rt-scheduler"))
-        features |= META_EXPERIMENTAL_FEATURE_RT_SCHEDULER;
       else if (g_str_equal (feature, "autostart-xwayland"))
         features |= META_EXPERIMENTAL_FEATURE_AUTOSTART_XWAYLAND;
       else