libutils: RefBase remove 'basetype' typedefs

useless/unused

Bug: N/A
Test: N/A
Change-Id: I72462a64411a58d22e071f20e2c950bd99fdffb1
diff --git a/libutils/include/utils/LightRefBase.h b/libutils/include/utils/LightRefBase.h
index e488e60..b04e5c1 100644
--- a/libutils/include/utils/LightRefBase.h
+++ b/libutils/include/utils/LightRefBase.h
@@ -47,8 +47,6 @@
         return mCount.load(std::memory_order_relaxed);
     }
 
-    typedef LightRefBase<T> basetype;
-
 protected:
     inline ~LightRefBase() { }
 
diff --git a/libutils/include/utils/RefBase.h b/libutils/include/utils/RefBase.h
index 3a02a8a..42c6efb 100644
--- a/libutils/include/utils/RefBase.h
+++ b/libutils/include/utils/RefBase.h
@@ -296,8 +296,6 @@
         getWeakRefs()->trackMe(enable, retain); 
     }
 
-    typedef RefBase basetype;
-
 protected:
                             RefBase();
     virtual                 ~RefBase();