Temporarily remove the JDK 11 dependency in gradle

IntelliJ will not compile if there is a dependency on JDK 11 and the
project structure is set to something lower.

Change-Id: I80bba39f4b9a40f324f2d8bf70fc3a4190708d68
diff --git a/build.gradle b/build.gradle
index 6ef713e..759ee84 100644
--- a/build.gradle
+++ b/build.gradle
@@ -225,7 +225,6 @@
     implementation group: 'org.ow2.asm', name: 'asm-analysis', version: asmVersion
     implementation group: 'org.ow2.asm', name: 'asm-util', version: asmVersion
     testCompile sourceSets.examples.output
-    testCompile sourceSets.java11.output
     testCompile "junit:junit:$junitVersion"
     testCompile group: 'org.smali', name: 'smali', version: smaliVersion
     testCompile files('third_party/jasmin/jasmin-2.4.jar')