Remove two unused assignments

h2/src/main/org/h2/command/ddl/CreateTable.java

@@ -125,8 +125,7 @@ public class CreateTable extends CommandWithColumns {
                 try {
                     session.setUndoLogEnabled(false);
                     session.startStatementWithinTransaction();
-                    Insert insert = null;
-                    insert = new Insert(session);
+                    Insert insert = new Insert(session);
                     insert.setSortedInsertMode(sortedInsertMode);
                     insert.setQuery(asQuery);
                     insert.setTable(table);

h2/src/main/org/h2/mvstore/DataUtils.java

@@ -747,7 +747,7 @@ public final class DataUtils {
             }
             if (i++ - startKey == keyLength && s.regionMatches(startKey, key, 0, keyLength)) {
                 StringBuilder buff = new StringBuilder();
-                i = parseMapValue(buff, s, i, size);
+                parseMapValue(buff, s, i, size);
                 return buff.toString();
             } else {
                 while (i < size) {