[Cleanup] Code Cleanup, Removed some unused methods

app/src/main/java/code/name/monkey/retromusic/activities/LockScreenActivity.kt

@@ -82,6 +82,7 @@ class LockScreenActivity : AbsMusicServiceActivity() {
         }
     }
 
+    @Suppress("Deprecation")
     private fun lockScreenInit() {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
             setShowWhenLocked(true)

app/src/main/java/code/name/monkey/retromusic/activities/base/AbsBaseActivity.kt

@@ -172,7 +172,7 @@ abstract class AbsBaseActivity : AbsThemeActivity() {
                 v.getGlobalVisibleRect(outRect)
                 if (!outRect.contains(event.rawX.toInt(), event.rawY.toInt())) {
                     v.clearFocus()
-                    val imm = getSystemService<InputMethodManager>()?.hideSoftInputFromWindow(v.windowToken, 0)
+                    getSystemService<InputMethodManager>()?.hideSoftInputFromWindow(v.windowToken, 0)
                 }
             }
         }