Update SQLQuerySuite.scala

Author: AngersZhuuuu

sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala

@@ -113,19 +113,6 @@ class SQLQuerySuite extends QueryTest with SharedSparkSession {
     checkKeywordsExist(sql("describe functioN abcadf"), "Function: abcadf not found.")
   }
 
-  test("drop virtual functions") {
-    val e1 = intercept[AnalysisException] {
-      sql(
-        "drop function case")
-    }
-    assert(e1.message == "Cannot drop virtual function 'case'")
-    val e2 = intercept[AnalysisException] {
-      sql(
-        "drop function `!=`")
-    }
-    assert(e2.message == "Cannot drop virtual function '!='")
-  }
-
   test("SPARK-14415: All functions should have own descriptions") {
     for (f <- spark.sessionState.functionRegistry.listFunction()) {
       if (!Seq("cube", "grouping", "grouping_id", "rollup", "window").contains(f.unquotedString)) {