[To dev/1.3][remove datanode] Delete the SQL of removing multiple datanodes at the same time (#14879)

* [remove datanode] Delete the SQL of removing multiple datanodes at the same time #14862

(cherry picked from commit b4cec03)

* fix compile

Author: HxpSerein

iotdb-core/antlr/src/main/antlr4/org/apache/iotdb/db/qp/sql/IoTDBSqlParser.g4

@@ -556,7 +556,7 @@ verifyConnection
 
 // ---- Remove DataNode
 removeDataNode
-    : REMOVE DATANODE dataNodeId=INTEGER_LITERAL (COMMA dataNodeId=INTEGER_LITERAL)*
+    : REMOVE DATANODE dataNodeId=INTEGER_LITERAL
     ;
 
 // ---- Remove ConfigNode

iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/parser/ASTVisitor.java

@@ -233,7 +233,6 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.io.BaseEncoding;
 import org.antlr.v4.runtime.Token;
-import org.antlr.v4.runtime.tree.ParseTree;
 import org.antlr.v4.runtime.tree.TerminalNode;
 import org.apache.tsfile.common.conf.TSFileDescriptor;
 import org.apache.tsfile.common.constant.TsFileConstant;
@@ -249,6 +248,7 @@
 import java.time.ZoneId;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.LinkedHashSet;
@@ -4172,12 +4172,9 @@ public Statement visitRemoveRegion(IoTDBSqlParser.RemoveRegionContext ctx) {
 
   @Override
   public Statement visitRemoveDataNode(IoTDBSqlParser.RemoveDataNodeContext ctx) {
-    List<Integer> dataNodeIDs =
-        ctx.INTEGER_LITERAL().stream()
-            .map(ParseTree::getText)
-            .map(Integer::parseInt)
-            .collect(Collectors.toList());
-    return new RemoveDataNodeStatement(dataNodeIDs);
+    List<Integer> nodeIds =
+        Collections.singletonList(Integer.parseInt(ctx.INTEGER_LITERAL().getText()));
+    return new RemoveDataNodeStatement(nodeIds);
   }
 
   @Override