Revert "allow precise device detection"

This reverts commit ed7d296dfabd9d0297514518f41ead36130302e7.
diff --git a/flashutils/erase_image.c b/flashutils/erase_image.c
index b09a424..c495255 100644
--- a/flashutils/erase_image.c
+++ b/flashutils/erase_image.c
@@ -99,5 +99,5 @@
         return 2;
     }
 
-    return erase_raw_partition(NULL, argv[1]);
+    return erase_raw_partition(argv[1]);
 }