Fix cursor state bug

InputConnection#finishComposingText() should not change the position of the cursor,
so neither should it change its internal expectation of the cursor's position.

Change-Id: Ib3d39a5743cd1e8e356f438b04a5c30279430b2a

java/src/com/android/inputmethod/latin/RichInputConnection.java

@@ -169,7 +169,6 @@ public final class RichInputConnection {
         if (DEBUG_BATCH_NESTING) checkBatchEdit();
         if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
         mCommittedTextBeforeComposingText.append(mComposingText);
-        mExpectedCursorPosition += mComposingText.length();
         mComposingText.setLength(0);
         if (null != mIC) {
             mIC.finishComposingText();