remove unused errorcode

corrected previous patch removing  "if (signal)", which should acually be "if (signum)"

ndb/src/common/debugger/EventLogger.cpp

@@ -115,6 +115,7 @@ void getTextNDBStopForced(QQQQ) {
   int sphase        = theData[4];
   int extra         = theData[5];
   getRestartAction(theData[1],action_str);
+  if (signum)
     reason_str.appfmt(" Initiated by signal %d.", signum);
   if (error)
   {

ndb/src/kernel/blocks/dbtc/Dbtc.hpp

@@ -138,7 +138,6 @@
 
 #define ZNOT_FOUND 626
 #define ZALREADYEXIST 630
-#define ZINCONSISTENTHASHINDEX 892
 #define ZNOTUNIQUE 893
 
 #define ZINVALID_KEY 290

ndb/src/ndbapi/ndberror.c

@@ -208,7 +208,6 @@ ErrorBundle ErrorCodes[] = {
   /**
    * Internal errors
    */
-  { 892,  IE, "Inconsistent hash index. The index needs to be dropped and recreated" },
   { 896,  IE, "Tuple corrupted - wrong checksum or column data in invalid format" },
   { 901,  IE, "Inconsistent ordered index. The index needs to be dropped and recreated" },
   { 202,  IE, "202" },