[SPARK-31954][SQL] Delete duplicate testcase in HiveQuerySuite

### What changes were proposed in this pull request?
remove duplicate test cases

### Why are the changes needed?
improve test quality

### Does this PR introduce _any_ user-facing change?
NO

### How was this patch tested?
No  test

Closes #28782 from GuoPhilipse/31954-delete-duplicate-testcase.

Lead-authored-by: GuoPhilipse <46367746+GuoPhilipse@users.noreply.github.com>
Co-authored-by: GuoPhilipse <guofei_ok@126.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>

sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/HiveQuerySuite.scala

@@ -556,33 +556,27 @@ class HiveQuerySuite extends HiveComparisonTest with SQLTestUtils with BeforeAnd
     assert(1 == res.getDouble(0))
   }
 
-  createQueryTest("timestamp cast #2",
-    "SELECT CAST(CAST(1.2 AS TIMESTAMP) AS DOUBLE) FROM src LIMIT 1")
-
-  test("timestamp cast #3") {
-    val res = sql("SELECT CAST(CAST(1200 AS TIMESTAMP) AS INT) FROM src LIMIT 1").collect().head
-    assert(1200 == res.getInt(0))
+  test("timestamp cast #2") {
+    val res = sql("SELECT CAST(CAST(-1 AS TIMESTAMP) AS DOUBLE) FROM src LIMIT 1").collect().head
+    assert(-1 == res.get(0))
   }
 
-  createQueryTest("timestamp cast #4",
+  createQueryTest("timestamp cast #3",
     "SELECT CAST(CAST(1.2 AS TIMESTAMP) AS DOUBLE) FROM src LIMIT 1")
 
+  createQueryTest("timestamp cast #4",
+    "SELECT CAST(CAST(-1.2 AS TIMESTAMP) AS DOUBLE) FROM src LIMIT 1")
+
   test("timestamp cast #5") {
-    val res = sql("SELECT CAST(CAST(-1 AS TIMESTAMP) AS DOUBLE) FROM src LIMIT 1").collect().head
-    assert(-1 == res.get(0))
+    val res = sql("SELECT CAST(CAST(1200 AS TIMESTAMP) AS INT) FROM src LIMIT 1").collect().head
+    assert(1200 == res.getInt(0))
   }
 
-  createQueryTest("timestamp cast #6",
-    "SELECT CAST(CAST(-1.2 AS TIMESTAMP) AS DOUBLE) FROM src LIMIT 1")
-
-  test("timestamp cast #7") {
+  test("timestamp cast #6") {
     val res = sql("SELECT CAST(CAST(-1200 AS TIMESTAMP) AS INT) FROM src LIMIT 1").collect().head
     assert(-1200 == res.getInt(0))
   }
 
-  createQueryTest("timestamp cast #8",
-    "SELECT CAST(CAST(-1.2 AS TIMESTAMP) AS DOUBLE) FROM src LIMIT 1")
-
   createQueryTest("select null from table",
     "SELECT null FROM src LIMIT 1")