Backport android api 30+ fix for backspace to SDL2

(cherry picked from commit 22a6d76f2295ccc22353b6372b27181615c71e08)

android-project/app/src/main/java/org/libsdl/app/SDLActivity.java

@@ -2008,17 +2008,15 @@ class SDLInputConnection extends BaseInputConnection {
 
     @Override
     public boolean deleteSurroundingText(int beforeLength, int afterLength) {
-        if (Build.VERSION.SDK_INT <= 29 /* Android 10.0 (Q) */) {
-            // Workaround to capture backspace key. Ref: http://stackoverflow.com/questions>/14560344/android-backspace-in-webview-baseinputconnection
-            // and https://bugzilla.libsdl.org/show_bug.cgi?id=2265
-            if (beforeLength > 0 && afterLength == 0) {
-                // backspace(s)
-                while (beforeLength-- > 0) {
-                    nativeGenerateScancodeForUnichar('\b');
-                }
-                return true;
-           }
-        }
+        // Workaround to capture backspace key. Ref: http://stackoverflow.com/questions>/14560344/android-backspace-in-webview-baseinputconnection
+        // and https://bugzilla.libsdl.org/show_bug.cgi?id=2265
+        if (beforeLength > 0 && afterLength == 0) {
+            // backspace(s)
+            while (beforeLength-- > 0) {
+                nativeGenerateScancodeForUnichar('\b');
+            }
+            return true;
+       }
 
         if (!super.deleteSurroundingText(beforeLength, afterLength)) {
             return false;