Remove redundant excludes from Oracle, MySQL surefire and DB2 configs (#1480)

Probably leftovers when content was copied from the Pg client POM file.

Signed-off-by: Thomas Segismont <[email protected]>

Author: tsegismont

vertx-db2-client/pom.xml

@@ -102,9 +102,6 @@
                    (https://bugs.openjdk.java.net/browse/JDK-8258598) -->
               <java.security.properties>${project.basedir}/src/test/java.security</java.security.properties>
             </systemPropertyVariables>
-            <excludes>
-              <exclude>io/vertx/db2client/it/**</exclude>
-            </excludes>
           </configuration>
         </plugin>
       </plugins>

vertx-mysql-client/pom.xml

@@ -87,9 +87,6 @@
             <systemPropertyVariables>
               <target.dir>${project.build.directory}</target.dir>
             </systemPropertyVariables>
-            <excludes>
-              <exclude>io/vertx/pgclient/it/**</exclude>
-            </excludes>
           </configuration>
         </plugin>
       </plugins>

vertx-oracle-client/pom.xml

@@ -99,9 +99,6 @@
             <systemPropertyVariables>
               <target.dir>${project.build.directory}</target.dir>
             </systemPropertyVariables>
-            <excludes>
-              <exclude>io/vertx/pgclient/it/**</exclude>
-            </excludes>
           </configuration>
         </plugin>
         <plugin>