remove useless change

Signed-off-by: xinyual <xinyual@amazon.com>

Author: xinyual

core/src/main/java/org/opensearch/sql/ast/expression/LambdaFunction.java

@@ -14,14 +14,12 @@
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
-import java.util.Map;
 import lombok.RequiredArgsConstructor;
 import org.apache.calcite.rel.RelNode;
 import org.apache.calcite.rel.type.RelDataType;
 import org.apache.calcite.rel.type.RelDataTypeFactory;
 import org.apache.calcite.rex.RexBuilder;
 import org.apache.calcite.rex.RexCall;
-import org.apache.calcite.rex.RexLambdaRef;
 import org.apache.calcite.rex.RexNode;
 import org.apache.calcite.sql.SqlIntervalQualifier;
 import org.apache.calcite.sql.fun.SqlStdOperatorTable;

core/src/main/java/org/opensearch/sql/calcite/CalciteRexNodeVisitor.java

@@ -448,8 +448,8 @@ integTest {
 
     dependsOn ':opensearch-sql-plugin:bundlePlugin'
     if(getOSFamilyType() != "windows") {
-        dependsOn startPrometheus
-        finalizedBy stopPrometheus
+        //dependsOn startPrometheus
+        //finalizedBy stopPrometheus
     }
 
     // enable calcite codegen in IT

integ-test/build.gradle

@@ -1043,7 +1043,6 @@ keywordsCanBeId
    | SPAN
    | evalFunctionName
    | jsonFunctionName
-   | collectionFunctionName
    | relevanceArgName
    | intervalUnit
    | trendlineType