Remove dead code identified by the clang static analyzer.

FossilOrigin-Name: 01a79d5a7af48fb7e50291c0c7c6283d3fb359d0
diff --git a/src/insert.c b/src/insert.c
index adf6ef2..851f778 100644
--- a/src/insert.c
+++ b/src/insert.c
@@ -465,7 +465,6 @@
   int regIns;           /* Block of regs holding rowid+data being inserted */
   int regRowid;         /* registers holding insert rowid */
   int regData;          /* register holding first column to insert */
-  int regRecord;        /* Holds the assemblied row record */
   int regEof = 0;       /* Register recording end of SELECT data */
   int *aRegIdx = 0;     /* One register allocated to each index */
 
@@ -794,7 +793,6 @@
   /* Allocate registers for holding the rowid of the new row,
   ** the content of the new row, and the assemblied row record.
   */
-  regRecord = ++pParse->nMem;
   regRowid = regIns = pParse->nMem+1;
   pParse->nMem += pTab->nCol + 1;
   if( IsVirtual(pTab) ){
@@ -1188,7 +1186,7 @@
       case OE_Rollback:
       case OE_Fail: {
         char *zMsg;
-        j1 = sqlite3VdbeAddOp3(v, OP_HaltIfNull,
+        sqlite3VdbeAddOp3(v, OP_HaltIfNull,
                                   SQLITE_CONSTRAINT, onError, regData+i);
         zMsg = sqlite3MPrintf(pParse->db, "%s.%s may not be NULL",
                               pTab->zName, pTab->aCol[i].zName);