maven_jar(): Remove gerrit specific condition

Snapshot artifacts on Maven Central have the same characteristics as
on Google storage buckets, so that these check shouldn't be Gerrit
repository specific [1]. In fact Bucklets are not Gerrit Code Review
project specific, but a generic plugin layer for Buck build system.

[1] https://github.com/davido/bucklets/issues/3
Change-Id: I05f138cb287e3021aa4282d7bd6e9dc4e7daae56

maven_jar.bucklet

diff --git a/maven_jar.bucklet b/maven_jar.bucklet
index 20ebbe7..48039ff 100644
--- a/maven_jar.bucklet
+++ b/maven_jar.bucklet
@@ -68,11 +68,11 @@
     raise NameError('expected id="groupId:artifactId:version"')
   group, artifact, version = parts
 
-  if 'SNAPSHOT' in version and repository.startswith(GERRIT):
+  if 'SNAPSHOT' in version and repository == MAVEN_LOCAL:
+    file_version = version
+  else:
     file_version = version.replace('-SNAPSHOT', '')
     version = version.split('-SNAPSHOT')[0] + '-SNAPSHOT'
-  else:
-    file_version = version
 
   jar = path.join(name, artifact.lower() + '-' + file_version)
   url = '/'.join([