remove jimfs dep in tests

qa/evil-tests/build.gradle

@@ -17,8 +17,20 @@
  * under the License.
  */
 
+/*
+ * Evil tests that need to do unrealistic things: test OS security
+ * integration, change default filesystem impl, mess with arbitrary
+ * threads, etc.
+ */
+
 apply plugin: 'elasticsearch.standalone-test'
 
+dependencies {
+  testCompile 'com.google.jimfs:jimfs:1.0'
+}
+
+// TODO: give each evil test its own fresh JVM for more isolation.
+
 test {
   systemProperty 'tests.security.manager', 'false'
 }

test-framework/build.gradle

@@ -33,7 +33,6 @@ dependencies {
   compile('org.hamcrest:hamcrest-all:1.3') {
     exclude group: 'org.hamcrest', module: 'hamcrest-core'
   }
-  compile 'com.google.jimfs:jimfs:1.0'
   compile "org.apache.httpcomponents:httpclient:${versions.httpclient}"
 }