Revert "New NativeDaemonConnector protocol adds a seqnum."

Reverting because it seems to break `adb reboot`

This reverts commit dc58e73071aa829a5038caf37211f6b3e2d7b275.

Change-Id: Ib8cc4379254694398cbb7f3e7a64c20e1ed8c1ba
diff --git a/include/sysutils/SocketClient.h b/include/sysutils/SocketClient.h
index 96323ac..7d2b1d6 100644
--- a/include/sysutils/SocketClient.h
+++ b/include/sysutils/SocketClient.h
@@ -24,9 +24,6 @@
     pthread_mutex_t mRefCountMutex;
     int mRefCount;
 
-    pthread_mutex_t mCmdNumMutex;
-    int mCmdNum;
-
 public:
     SocketClient(int sock, bool owned);
     virtual ~SocketClient();
@@ -35,13 +32,12 @@
     pid_t getPid() const { return mPid; }
     uid_t getUid() const { return mUid; }
     gid_t getGid() const { return mGid; }
-    void setCmdNum(int cmdNum);
-    int getCmdNum();
 
     // Send null-terminated C strings:
     int sendMsg(int code, const char *msg, bool addErrno);
+    int sendMsg(const char *msg);
 
-    //Sending binary data:
+    // Sending binary data:
     int sendData(const void *data, int len);
 
     // Optional reference counting.  Reference count starts at 1.  If
@@ -50,10 +46,6 @@
     // decRef() when it's done with the client.
     void incRef();
     bool decRef(); // returns true at 0 (but note: SocketClient already deleted)
-
-private:
-    // Send null-terminated C strings
-    int sendMsg(const char *msg);
 };
 
 typedef android::List<SocketClient *> SocketClientCollection;