Remove google-java-format hook

We're trying to follow Android framework style, not Google style.

Occasionally google-java-format and checkstyle disagree, so get rid of
the one we don't need.

Test: CL that was causing problems uploads cleanly.
Change-Id: Ic1653234fc928d8d171aae6a7a2a2e897ae59344
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index 00f34b9..a6b1f95 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -4,7 +4,6 @@
 bpfmt = true
 clang_format = true
 jsonlint = true
-google_java_format = true
 pylint3 = true
 rustfmt = true
 xmllint = true