Bazel: Remove unnecessary 'include =' on java_library src parameter

Found by running the latest head of buildifier's master with
the -lint=warn option.

Change-Id: Ibf13fbe5a39f09a23e1d36fc8f00332a0c2d997d
diff --git a/BUILD b/BUILD
index 69fb88c..46614fd 100644
--- a/BUILD
+++ b/BUILD
@@ -27,7 +27,7 @@
     name = "testutils",
     testonly = 1,
     srcs = glob(
-        include = ["src/test/java/**/*.java"],
+        ["src/test/java/**/*.java"],
         exclude = [TEST_SRCS],
     ),
     deps = TEST_DEPS,