Revert "UI: Only apply new scaling behavior on newer installs"

This reverts commit 4e5f20dcbe1506802d9990886aed375cbb75a5b8.

This originally was added because of a faulty assumption that it would
change defaults, but defaults were apparently broken from 26.0.2 -> 26.1
because primaryScreen->size() changed its behavior, so the original code
technically fixed the original behavior.

UI/obs-app.cpp

@@ -777,18 +777,6 @@ bool OBSApp::InitGlobalConfig()
 	}
 #undef PRE_24_1_DEFS
 
-#define PRE_26_2_DEFS "Pre26.2Defaults"
-	if (!config_has_user_value(globalConfig, "General", PRE_26_2_DEFS)) {
-		bool useOldDefaults = lastVersion &&
-				      lastVersion <
-					      MAKE_SEMANTIC_VERSION(26, 2, 0);
-
-		config_set_bool(globalConfig, "General", PRE_26_2_DEFS,
-				useOldDefaults);
-		changed = true;
-	}
-#undef PRE_26_2_DEFS
-
 	if (config_has_user_value(globalConfig, "BasicWindow",
 				  "MultiviewLayout")) {
 		const char *layout = config_get_string(

UI/window-basic-main.cpp

@@ -1218,19 +1218,13 @@ bool OBSBasic::InitBasicConfigDefaults()
 	uint32_t cx = primaryScreen->size().width();
 	uint32_t cy = primaryScreen->size().height();
 
-	bool oldScaleBehavior = config_get_bool(App()->GlobalConfig(),
-						"General", "Pre26.2Defaults");
-
-	/* after version 26.2, apply scaling to cx/cy */
-	if (!oldScaleBehavior) {
 #ifdef SUPPORTS_FRACTIONAL_SCALING
-		cx *= devicePixelRatioF();
-		cy *= devicePixelRatioF();
+	cx *= devicePixelRatioF();
+	cy *= devicePixelRatioF();
 #elif
-		cx *= devicePixelRatio();
-		cy *= devicePixelRatio();
+	cx *= devicePixelRatio();
+	cy *= devicePixelRatio();
 #endif
-	}
 
 	bool oldResolutionDefaults = config_get_bool(
 		App()->GlobalConfig(), "General", "Pre19Defaults");