Clean up warnings in mi.

A coupel of unused variables, and some debug code with mis-matching
printf format and variable types.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>

mi/mieq.c

@@ -585,7 +585,7 @@ mieqProcessInputEvents(void)
     if (n_enqueued >= (miEventQueue.nevents - (2 * QUEUE_RESERVED_SIZE)) &&
         miEventQueue.nevents < QUEUE_MAXIMUM_SIZE) {
         ErrorF("[mi] Increasing EQ size to %lu to prevent dropped events.\n",
-               miEventQueue.nevents << 1);
+               (unsigned long) (miEventQueue.nevents << 1));
         if (!mieqGrowQueue(&miEventQueue, miEventQueue.nevents << 1)) {
             ErrorF("[mi] Increasing the size of EQ failed.\n");
         }
@@ -593,7 +593,7 @@ mieqProcessInputEvents(void)
 
     if (miEventQueue.dropped) {
         ErrorF("[mi] EQ processing has resumed after %lu dropped events.\n",
-               miEventQueue.dropped);
+               (unsigned long) miEventQueue.dropped);
         ErrorF
             ("[mi] This may be caused my a misbehaving driver monopolizing the server's resources.\n");
         miEventQueue.dropped = 0;

mi/mipointer.c

@@ -352,7 +352,6 @@ miPointerWarpCursor(DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)
     miPointerPtr pPointer;
     BOOL changedScreen = FALSE;
 
-    SetupScreen(pScreen);
     pPointer = MIPOINTER(pDev);
 
     if (pPointer->pScreen != pScreen) {
@@ -465,14 +464,12 @@ miPointerUpdateSprite(DeviceIntPtr pDev)
 void
 miPointerSetScreen(DeviceIntPtr pDev, int screen_no, int x, int y)
 {
-    miPointerScreenPtr pScreenPriv;
     ScreenPtr pScreen;
     miPointerPtr pPointer;
 
     pPointer = MIPOINTER(pDev);
 
     pScreen = screenInfo.screens[screen_no];
-    pScreenPriv = GetScreenPrivate(pScreen);
     mieqSwitchScreen(pDev, pScreen, FALSE);
     NewCurrentScreen(pDev, pScreen, x, y);