IGNITE-12680 Cleanup unneeded usages of SystemPropertiesRule - Fixes #7426.

Signed-off-by: Alexey Goncharuk <alexey.goncharuk@gmail.com>
diff --git a/modules/core/src/test/java/org/apache/ignite/util/GridCommandHandlerAbstractTest.java b/modules/core/src/test/java/org/apache/ignite/util/GridCommandHandlerAbstractTest.java
index c4a099a..2b7472d 100644
--- a/modules/core/src/test/java/org/apache/ignite/util/GridCommandHandlerAbstractTest.java
+++ b/modules/core/src/test/java/org/apache/ignite/util/GridCommandHandlerAbstractTest.java
@@ -53,11 +53,8 @@
 import org.apache.ignite.internal.util.typedef.internal.U;
 import org.apache.ignite.spi.encryption.keystore.KeystoreEncryptionSpi;
 import org.apache.ignite.testframework.GridTestUtils;
-import org.apache.ignite.testframework.junits.SystemPropertiesRule;
 import org.apache.ignite.testframework.junits.WithSystemProperty;
 import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
-import org.junit.ClassRule;
-import org.junit.rules.TestRule;
 
 import static java.lang.String.join;
 import static java.lang.System.lineSeparator;
@@ -82,9 +79,6 @@
 @WithSystemProperty(key = IGNITE_ENABLE_EXPERIMENTAL_COMMAND, value = "true")
 public abstract class GridCommandHandlerAbstractTest extends GridCommonAbstractTest {
     /** */
-    @ClassRule public static final TestRule classRule = new SystemPropertiesRule();
-
-    /** */
     protected static final String CLIENT_NODE_NAME_PREFIX = "client";
 
     /** Option is used for auto confirmation. */
diff --git a/modules/indexing/src/test/java/org/apache/ignite/internal/processors/query/IgniteQueryDedicatedPoolTest.java b/modules/indexing/src/test/java/org/apache/ignite/internal/processors/query/IgniteQueryDedicatedPoolTest.java
index cbfa048..a3713d9 100644
--- a/modules/indexing/src/test/java/org/apache/ignite/internal/processors/query/IgniteQueryDedicatedPoolTest.java
+++ b/modules/indexing/src/test/java/org/apache/ignite/internal/processors/query/IgniteQueryDedicatedPoolTest.java
@@ -45,13 +45,10 @@
 import org.apache.ignite.spi.indexing.IndexingSpi;
 import org.apache.ignite.testframework.ListeningTestLogger;
 import org.apache.ignite.testframework.LogListener;
-import org.apache.ignite.testframework.junits.SystemPropertiesRule;
 import org.apache.ignite.testframework.junits.WithSystemProperty;
 import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
 import org.jetbrains.annotations.Nullable;
-import org.junit.ClassRule;
 import org.junit.Test;
-import org.junit.rules.TestRule;
 
 import static java.util.Objects.nonNull;
 import static org.apache.ignite.IgniteSystemProperties.IGNITE_STARVATION_CHECK_INTERVAL;
@@ -62,9 +59,6 @@
  * Ensures that SQL queries are executed in a dedicated thread pool.
  */
 public class IgniteQueryDedicatedPoolTest extends GridCommonAbstractTest {
-    /** Class rule. */
-    @ClassRule public static final TestRule classRule = new SystemPropertiesRule();
-
     /** Name of the cache for test */
     private static final String CACHE_NAME = "query_pool_test";