Remove old log4j dependency.

Related: #1274.

Author: gregturn

spring-ws-core/pom.xml

@@ -201,22 +201,6 @@
             <version>${slf4j.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-slf4j18-impl</artifactId>
-            <version>${log4j2.version}</version>
-            <scope>test</scope>
-            <exclusions>
-                <exclusion>
-                    <groupId>org.slf4j</groupId>
-                    <artifactId>slf4j-api</artifactId>
-                </exclusion>
-                <exclusion>
-                    <groupId>org.apache.logging.log4j</groupId>
-                    <artifactId>log4j-core</artifactId>
-                </exclusion>
-            </exclusions>
-        </dependency>
 
         <dependency>
             <groupId>org.aspectj</groupId>