Remove the JVM flags -XX:PermSize and -XX:MaxPermSize

More information: []

Tested:
    TAP for global presubmit queue
    []

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188968676

javatests/google/registry/mapreduce/inputs/BUILD

@@ -32,7 +32,6 @@ java_library(
 GenTestRules(
     name = "GeneratedTestRules",
     default_test_size = "medium",
-    jvm_flags = ["-XX:MaxPermSize=256m"],
     test_files = glob(["*Test.java"]),
     deps = [":inputs"],
 )