Buck: Merge deps and compile_deps parameters in gwt_module() rule

After migration to Buck's own gwt_binary() rule, gwt module libraries
must contain compiled classes. That makes the differentiation between
deps and compile_deps unnecessary.

Change-Id: I26fd741d566709a4d56b6e9623766012279903e4

gerrit-prettify/BUCK

diff --git a/gerrit-prettify/BUCK b/gerrit-prettify/BUCK
index e753ad9..79dc760 100644
--- a/gerrit-prettify/BUCK
+++ b/gerrit-prettify/BUCK
@@ -11,12 +11,10 @@
     'src/main/java/com/google/gerrit/prettify/client/*.properties',
   ]),
   deps = [
+    ':google-code-prettify',
     '//gerrit-patch-jgit:client',
     '//gerrit-reviewdb:client',
     '//gerrit-gwtexpui:SafeHtml',
-  ],
-  compile_deps = [
-    ':google-code-prettify',
     '//lib:guava',
     '//lib:gwtjsonrpc',
     '//lib/gwt:user',