Enable checkstyle member and local variable checks

Enable checkstyle member and local variable name checks, and fix any violations that are detected.

Change-Id: I7524635cd39a9627b041e2ff6be169810f63913e
diff --git a/conf/checkstyle/sun_checks.xml b/conf/checkstyle/sun_checks.xml
index 9ab4e94..975350e 100644
--- a/conf/checkstyle/sun_checks.xml
+++ b/conf/checkstyle/sun_checks.xml
@@ -122,13 +122,9 @@
         </module>
         <module name="LocalFinalVariableName"/>
 
-        <module name="LocalVariableName">
-          <property name="severity" value="warning"/>
-        </module>
+        <module name="LocalVariableName"/>
 
-        <module name="MemberName">
-          <property name="severity" value="warning"/>
-        </module>
+        <module name="MemberName"/>
 
         <module name="MethodName">
           <property name="severity" value="warning"/>