All json tests are small tests

Author: shs96c

java/client/test/org/openqa/selenium/json/BUCK

@@ -1,9 +1,5 @@
 java_test(name = 'small-tests',
-  srcs = [
-    'BeanToJsonConverterTest.java',
-    'JsonToBeanConverterTest.java',
-    'JsonTest.java',
-  ],
+  srcs = glob(['*.java']),
   deps = [
     '//java/client/src/org/openqa/selenium:selenium',
     '//java/client/src/org/openqa/selenium/remote:remote',