objsel: Do not check for a NULL interface in COM methods.

dlls/objsel/objsel.c

@@ -59,8 +59,6 @@ static ULONG WINAPI OBJSEL_IDsObjectPicker_AddRef(IDsObjectPicker * iface)
 
     TRACE("\n");
 
-    if (This == NULL) return E_POINTER;
-
     return InterlockedIncrement(&This->ref);
 }
 
@@ -75,8 +73,6 @@ static ULONG WINAPI OBJSEL_IDsObjectPicker_Release(IDsObjectPicker * iface)
 
     TRACE("\n");
 
-    if (This == NULL) return E_POINTER;
-
     ref = InterlockedDecrement(&This->ref);
 
     if (ref == 0)
@@ -209,9 +205,6 @@ static ULONG WINAPI class_factory_AddRef(IClassFactory *iface)
 
     TRACE("\n");
 
-    if (!factory)
-        return E_POINTER;
-
     return InterlockedIncrement(&factory->ref);
 }
 
@@ -222,9 +215,6 @@ static ULONG WINAPI class_factory_Release(IClassFactory *iface)
 
     TRACE("\n");
 
-    if (!factory)
-        return E_POINTER;
-
     return InterlockedDecrement(&factory->ref);
 }