Revert "Split Stk into a client apk and a lib."

This reverts commit 7e1566067f791a8145d36e397cdd6b842cc89240.

Reason for revert: b/148821604

Change-Id: I9f5682f99c73c447a5af8d29ed662f1bd68a0bf6
diff --git a/src/com/android/stk/StkInputActivity.java b/src/com/android/stk/StkInputActivity.java
index fe16101..0af6767 100644
--- a/src/com/android/stk/StkInputActivity.java
+++ b/src/com/android/stk/StkInputActivity.java
@@ -105,18 +105,22 @@
             return;
         }
 
-        if (v.getId() == R.id.button_ok) {
+        switch (v.getId()) {
+        case R.id.button_ok:
             input = mTextIn.getText().toString();
-        } else if (v.getId() == R.id.button_cancel) {
+            break;
+        case R.id.button_cancel:
             sendResponse(StkAppService.RES_ID_END_SESSION);
             finish();
             return;
-            // Yes/No layout buttons.
-        } else if (v.getId() == R.id.button_yes) {
+        // Yes/No layout buttons.
+        case R.id.button_yes:
             input = YES_STR_RESPONSE;
-        } else if (v.getId() == R.id.button_no) {
+            break;
+        case R.id.button_no:
             input = NO_STR_RESPONSE;
-        } else if (v.getId() == R.id.more) {
+            break;
+        case R.id.more:
             if (mPopupMenu == null) {
                 mPopupMenu = new PopupMenu(this, v);
                 Menu menu = mPopupMenu.getMenu();
@@ -136,6 +140,8 @@
                 mPopupMenu.show();
             }
             return;
+        default:
+            break;
         }
         CatLog.d(LOG_TAG, "handleClick, ready to response");
         sendResponse(StkAppService.RES_ID_INPUT, input, false);