Prevent DTMFTwelveKeyDialer from logging all keypresses.

This fixes an externally reported problem in which keypresses made
during phone calls were being sent to logcat.

Change-Id: Ic47fdec0b600e7854933282b57693f143900a0ac
diff --git a/src/com/android/phone/DTMFTwelveKeyDialer.java b/src/com/android/phone/DTMFTwelveKeyDialer.java
index bdd8080..da3d3f3 100755
--- a/src/com/android/phone/DTMFTwelveKeyDialer.java
+++ b/src/com/android/phone/DTMFTwelveKeyDialer.java
@@ -1022,7 +1022,6 @@
                 mDTMFQueue.add(new Character(dtmfDigit));
             } else {
                 String dtmfStr = Character.toString(dtmfDigit);
-                Log.i(LOG_TAG, "dtmfsent = " + dtmfStr);
                 mPhone.sendBurstDtmf(dtmfStr, 0, 0, mHandler.obtainMessage(DTMF_SEND_CNF));
                 // Set flag to indicate wait for Telephony confirmation.
                 mDTMFBurstCnfPending = true;