Remove commons-logging

Issue: gh-4308

core/spring-security-core.gradle

@@ -12,7 +12,6 @@ configurations {
 
 dependencies {
 	compile 'aopalliance:aopalliance'
-	compile 'commons-logging:commons-logging'
 	compile 'org.springframework:spring-aop'
 	compile 'org.springframework:spring-beans'
 	compile 'org.springframework:spring-context'