Revert "PHOENIX-4769 Annotate SystemCatalogIT so that it will run with the test suite"

This reverts commit 27a66607f3f67273367c7c5d2b1d20b721ec227b.
diff --git a/phoenix-core/src/it/java/org/apache/phoenix/end2end/SystemCatalogIT.java b/phoenix-core/src/it/java/org/apache/phoenix/end2end/SystemCatalogIT.java
index 2626ad6..15af2af 100644
--- a/phoenix-core/src/it/java/org/apache/phoenix/end2end/SystemCatalogIT.java
+++ b/phoenix-core/src/it/java/org/apache/phoenix/end2end/SystemCatalogIT.java
@@ -19,6 +19,7 @@
 package org.apache.phoenix.end2end;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 
 import java.sql.Connection;
 import java.sql.DriverManager;
@@ -26,18 +27,14 @@
 import java.sql.Statement;
 import java.util.Properties;
 
-import org.apache.hadoop.hbase.DoNotRetryIOException;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.TableName;
 import org.apache.hadoop.hbase.client.RegionLocator;
-import org.apache.phoenix.query.BaseTest;
 import org.apache.phoenix.util.PhoenixRuntime;
 import org.junit.After;
 import org.junit.Test;
-import org.junit.experimental.categories.Category;
 
-@Category(NeedsOwnMiniClusterTest.class)
-public class SystemCatalogIT extends BaseTest {
+public class SystemCatalogIT {
     private HBaseTestingUtility testUtil = null;
 
     @After
@@ -61,17 +58,13 @@
         TableName systemCatalog = TableName.valueOf("SYSTEM.CATALOG");
         RegionLocator rl = testUtil.getConnection().getRegionLocator(systemCatalog);
         assertEquals(rl.getAllRegionLocations().size(), 1);
-        try {
-            // now attempt to split SYSTEM.CATALOG
-            testUtil.getHBaseAdmin().split(systemCatalog);
 
-            // make sure the split finishes (there's no synchronous splitting before HBase 2.x)
-            testUtil.getHBaseAdmin().disableTable(systemCatalog);
-            testUtil.getHBaseAdmin().enableTable(systemCatalog);
-        } catch (DoNotRetryIOException e) {
-            // table is not splittable
-            assert (e.getMessage().contains("NOT splittable"));
-        }
+        // now attempt to split SYSTEM.CATALOG
+        testUtil.getHBaseAdmin().split(systemCatalog);
+
+        // make sure the split finishes (there's no synchronous splitting before HBase 2.x)
+        testUtil.getHBaseAdmin().disableTable(systemCatalog);
+        testUtil.getHBaseAdmin().enableTable(systemCatalog);
 
         // test again... Must still be exactly one region.
         rl = testUtil.getConnection().getRegionLocator(systemCatalog);