docs,libobs: Remove master volume functions

Never implemented, deprecated in 29.0.

docs/sphinx/reference-core.rst

@@ -508,24 +508,6 @@ Video, Audio, and Graphics
 
 ---------------------
 
-.. function:: void obs_set_master_volume(float volume)
-
-   No-op, only exists to keep ABI compatibility.
-
-   .. deprecated:: 29.0
-
----------------------
-
-.. function:: float obs_get_master_volume(void)
-
-   No-op, only exists to keep ABI compatibility.
-
-   :return: Always returns 1
-
-   .. deprecated:: 29.0
-
----------------------
-
 .. function:: bool obs_audio_monitoring_available(void)
 
    :return: Whether audio monitoring is supported and available on the current platform

libobs/obs.c

@@ -2229,16 +2229,6 @@ gs_texture_t *obs_get_main_texture(void)
 	return video->render_texture;
 }
 
-void obs_set_master_volume(float volume)
-{
-	UNUSED_PARAMETER(volume);
-}
-
-float obs_get_master_volume(void)
-{
-	return 1.f;
-}
-
 static obs_source_t *obs_load_source_type(obs_data_t *source_data,
 					  bool is_private)
 {

libobs/obs.h

@@ -762,12 +762,6 @@ EXPORT void obs_render_main_texture_src_color_only(void);
  * is unavailable. */
 EXPORT gs_texture_t *obs_get_main_texture(void);
 
-/** Sets the master user volume */
-OBS_DEPRECATED EXPORT void obs_set_master_volume(float volume);
-
-/** Gets the master user volume */
-OBS_DEPRECATED EXPORT float obs_get_master_volume(void);
-
 /** Saves a source to settings data */
 EXPORT obs_data_t *obs_save_source(obs_source_t *source);