Remove Duplicate commons-pool

Closes gh-790

Author: jzheaux

dependencies/build.gradle

@@ -31,7 +31,6 @@ dependencies {
 		api "commons-httpclient:commons-httpclient:3.1"
 		api "commons-lang:commons-lang:2.6"
 		api "commons-logging:commons-logging:1.2"
-		api "commons-pool:commons-pool:1.6"
 		api "gsbase:gsbase:2.0.1"
 		api "jdepend:jdepend:2.9.1"
 		api "ldapsdk:ldapsdk:4.1"