Delete unused miModifyBanking()

mi/mibank.c

@@ -67,7 +67,6 @@
  *   dropped due to colour flashing concerns.
  *
  * TODO:
- * - Allow miModifyBanking() to change BankSize and nBankDepth.
  * - Re-instate shared and double banking for framebuffers whose pixmap formats
  *   don't describe how the server "sees" the screen.
  * - Remove remaining assumptions that a pixmap's devPrivate field points
@@ -2216,59 +2215,6 @@ miBankNewSerialNumber(
     return WT_WALKCHILDREN;
 }
 
-/* This entry modifies the banking interface */
-Bool
-miModifyBanking(
-    ScreenPtr     pScreen,
-    miBankInfoPtr pBankInfo
-)
-{
-    unsigned int type;
-
-    if (!pScreen)
-        return FALSE;
-
-    if (miBankGeneration == serverGeneration)
-    {
-        SCREEN_INIT;
-
-        if (pScreenPriv)
-        {
-            if (!pBankInfo || !pBankInfo->BankSize ||
-                !pBankInfo->pBankA || !pBankInfo->pBankB ||
-                !pBankInfo->SetSourceBank || !pBankInfo->SetDestinationBank ||
-                !pBankInfo->SetSourceAndDestinationBanks)
-                return FALSE;
-
-            /* BankSize and nBankDepth cannot, as yet, be changed */
-            if ((pScreenPriv->BankInfo.BankSize != pBankInfo->BankSize) ||
-                (pScreenPriv->BankInfo.nBankDepth != pBankInfo->nBankDepth))
-                return FALSE;
-
-            if ((type = miBankDeriveType(pScreen, pBankInfo)) == BANK_NOBANK)
-                return FALSE;
-
-            /* Reset banking info */
-            pScreenPriv->BankInfo = *pBankInfo;
-            if (type != pScreenPriv->type)
-            {
-                /*
-                 * Banking type is changing.  Revalidate all window GC's.
-                 */
-                pScreenPriv->type = type;
-                WalkTree(pScreen, miBankNewSerialNumber, 0);
-            }
-
-            return TRUE;
-        }
-    }
-
-    if (!pBankInfo || !pBankInfo->BankSize)
-        return TRUE;                            /* No change requested */
-
-    return FALSE;
-}
-
 /*
  * Given various screen attributes, determine the minimum scanline width such
  * that each scanline is server and DDX padded and any pixels with imbedded

mi/mibank.h

@@ -94,12 +94,6 @@ miInitializeBanking(
     miBankInfoPtr /*pBankInfo*/
 );
 
-Bool
-miModifyBanking(
-    ScreenPtr /*pScreen*/,
-    miBankInfoPtr /*pBankInfo*/
-);
-
 /*
  * This function determines the minimum screen width, given a initial estimate
  * and various screen attributes.  DDX needs to determine this width before