Remove the jrubyCacheJars and jrubyCleanJars tasks which are no longer relevant

src/main/groovy/com/github/jrubygradle/war/JRubyWarPlugin.groovy

@@ -33,27 +33,5 @@ class JRubyWarPlugin implements Plugin<Project> {
             dependsOn project.tasks.jrubyPrepare
             classpath project.configurations.jrubyWar
         }
-
-        // TODO: jarcache should rather be inside buildDir
-        project.task('jrubyCacheJars', type: Copy) {
-            group JRubyPlugin.TASK_GROUP_NAME
-            description 'Cache .jar-based dependencies into .jarcache/'
-
-            from project.configurations.jrubyWar
-            into ".jarcache"
-            include '**/*.jar'
-        }
-
-        // Add our dependency onto jrubyPrepare so it will serve our needs too
-        project.tasks.jrubyPrepare.dependsOn project.tasks.jrubyCacheJars
-
-        project.task('jrubyCleanJars', type: Delete) {
-            group JRubyPlugin.TASK_GROUP_NAME
-            description 'Clean up the temporary dirs created by the jrubyCacheJars task'
-            delete '.jarcache/'
-        }
-
-        // Add our dependency onto clean so it will clean up after us too
-        project.tasks.clean.dependsOn project.tasks.jrubyCleanJars
     }
 }

src/test/groovy/com/github/jrubygradle/war/JRubyWarPluginSpec.groovy

@@ -29,31 +29,5 @@ class JRubyWarPluginSpec extends Specification {
         expect:
             project.tasks.jrubyWar.group == 'JRuby'
             project.tasks.jrubyWar instanceof War
-            project.tasks.jrubyCacheJars instanceof Copy
-            project.tasks.jrubyCleanJars instanceof Delete
-    }
-
-    def "jrubyPrepare should depend on jrubyCacheJars"() {
-        expect:
-            assertTrue(taskContainsDependency(project.tasks.jrubyPrepare,
-                        'jrubyCacheJars'))
-    }
-
-    def 'clean should depend on jrubyCleanJars'() {
-        expect:
-            assertTrue(taskContainsDependency(project.tasks.clean, 'jrubyCleanJars'))
-    }
-
-
-    private Boolean taskContainsDependency(Task task, String taskName) {
-        Boolean status = false
-        task.taskDependencies.values.each {
-            if (it instanceof Task) {
-                if (taskName == it.name) {
-                    status = true
-                }
-            }
-        }
-        return status
     }
 }