Revert "Add new MotionEvent actions for button press and release."

This reverts commit 48a8a0e4322969e1551536d6183af3a1faa2240b.
diff --git a/libs/input/InputTransport.cpp b/libs/input/InputTransport.cpp
index 0382f57..090ee53 100644
--- a/libs/input/InputTransport.cpp
+++ b/libs/input/InputTransport.cpp
@@ -283,7 +283,6 @@
         int32_t deviceId,
         int32_t source,
         int32_t action,
-        int32_t actionButton,
         int32_t flags,
         int32_t edgeFlags,
         int32_t metaState,
@@ -299,12 +298,12 @@
         const PointerCoords* pointerCoords) {
 #if DEBUG_TRANSPORT_ACTIONS
     ALOGD("channel '%s' publisher ~ publishMotionEvent: seq=%u, deviceId=%d, source=0x%x, "
-            "action=0x%x, actionButton=0x%08x, flags=0x%x, edgeFlags=0x%x, "
-            "metaState=0x%x, buttonState=0x%x, xOffset=%f, yOffset=%f, "
+            "action=0x%x, flags=0x%x, edgeFlags=0x%x, metaState=0x%x, buttonState=0x%x, "
+            "xOffset=%f, yOffset=%f, "
             "xPrecision=%f, yPrecision=%f, downTime=%lld, eventTime=%lld, "
             "pointerCount=%" PRIu32,
             mChannel->getName().string(), seq,
-            deviceId, source, action, actionButton, flags, edgeFlags, metaState, buttonState,
+            deviceId, source, action, flags, edgeFlags, metaState, buttonState,
             xOffset, yOffset, xPrecision, yPrecision, downTime, eventTime, pointerCount);
 #endif
 
@@ -325,7 +324,6 @@
     msg.body.motion.deviceId = deviceId;
     msg.body.motion.source = source;
     msg.body.motion.action = action;
-    msg.body.motion.actionButton = actionButton;
     msg.body.motion.flags = flags;
     msg.body.motion.edgeFlags = edgeFlags;
     msg.body.motion.metaState = metaState;
@@ -909,7 +907,6 @@
             msg->body.motion.deviceId,
             msg->body.motion.source,
             msg->body.motion.action,
-            msg->body.motion.actionButton,
             msg->body.motion.flags,
             msg->body.motion.edgeFlags,
             msg->body.motion.metaState,