Refactoring the KsuIsValid Check Logic

Signed-off-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>
Co-authored-by: rsuntk <rsuntk@yukiprjkt.my.id>
Co-authored-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>
Co-authored-by: Rifat Azad <33044977+rifsxd@users.noreply.github.com>

manager/app/src/main/java/com/sukisu/ultra/Natives.kt

@@ -90,14 +90,6 @@ object Natives {
     fun requireNewKernel(): Boolean {
         return version < MINIMAL_SUPPORTED_KERNEL
     }
-    
-    fun isKsuValid(pkgName: String?): Boolean {
-    	if (becomeManager(pkgName)) {
-    		return true
-    	} else {
-    		return false
-    	}
-    }
 
     @Immutable
     @Parcelize