obs-transitions: Nonlinear SRGB, slide

Switch back for now. Maybe we want CIELUV, but that's expensive.

plugins/obs-transitions/transition-slide.c

@@ -93,26 +93,14 @@ static void slide_callback(void *data, gs_texture_t *a, gs_texture_t *b,
 	vec2_mulf(&tex_a_dir, &tex_a_dir, t);
 	vec2_mulf(&tex_b_dir, &tex_b_dir, 1.0f - t);
 
-	const bool linear_srgb = gs_get_linear_srgb();
-
-	const bool previous = gs_framebuffer_srgb_enabled();
-	gs_enable_framebuffer_srgb(linear_srgb);
-
-	if (linear_srgb) {
-		gs_effect_set_texture_srgb(slide->a_param, a);
-		gs_effect_set_texture_srgb(slide->b_param, b);
-	} else {
-		gs_effect_set_texture(slide->a_param, a);
-		gs_effect_set_texture(slide->b_param, b);
-	}
+	gs_effect_set_texture(slide->a_param, a);
+	gs_effect_set_texture(slide->b_param, b);
 
 	gs_effect_set_vec2(slide->tex_a_dir_param, &tex_a_dir);
 	gs_effect_set_vec2(slide->tex_b_dir_param, &tex_b_dir);
 
 	while (gs_effect_loop(slide->effect, "Slide"))
 		gs_draw_sprite(NULL, 0, cx, cy);
-
-	gs_enable_framebuffer_srgb(previous);
 }
 
 void slide_video_render(void *data, gs_effect_t *effect)