vo_gpu: undeprecate --gamma-factor

deprecated since 0.35 in ac39661 and 2207236.

DOCS/interface-changes/gamma-factor.txt

@@ -0,0 +1 @@
+undeprecate `--gamma-factor`

DOCS/man/options.rst

@@ -6811,8 +6811,6 @@ them.
     other ways (like with the ``--gamma`` option or key bindings and the
     ``gamma`` property), the value is multiplied with the other gamma value.
 
-    This option is deprecated and may be removed in the future.
-
 ``--gamma-auto``
     Automatically corrects the gamma value depending on ambient lighting
     conditions (adding a gamma boost for bright rooms).

video/out/gpu/video.c

@@ -433,8 +433,7 @@ const struct m_sub_options gl_video_conf = {
     .opts = (const m_option_t[]) {
         {"gpu-dumb-mode", OPT_CHOICE(dumb_mode,
             {"auto", 0}, {"yes", 1}, {"no", -1})},
-        {"gamma-factor", OPT_FLOAT(gamma), M_RANGE(0.1, 2.0),
-            .deprecation_message = "no replacement"},
+        {"gamma-factor", OPT_FLOAT(gamma), M_RANGE(0.1, 2.0)},
         {"gamma-auto", OPT_BOOL(gamma_auto),
             .deprecation_message = "no replacement"},
         {"target-prim", OPT_CHOICE_C(target_prim, pl_csp_prim_names)},