1) Removes dependency of common/status.h from wv_cas_types.

2) Do not use glogs in example binary code.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=229984175

media_cas_packager_sdk/public/BUILD

@@ -161,7 +161,6 @@ cc_library(
     deps = [
         "//base",
         "//protos/public:media_cas_encryption_proto",
-        "//common:status",
     ],
 )
 

media_cas_packager_sdk/public/wv_cas_types.cc

@@ -11,7 +11,6 @@
 #include "glog/logging.h"
 #include "base/macros.h"
 #include "google/protobuf/util/json_util.h"
-#include "common/status.h"
 #include "protos/public/media_cas_encryption.pb.h"
 
 using google::protobuf::util::JsonPrintOptions;

media_cas_packager_sdk/public/wv_cas_types.h

@@ -12,8 +12,6 @@
 #include <string>
 #include <vector>
 
-#include "common/status.h"
-
 namespace widevine {
 namespace cas {