1 files changed, 1 insertions, 4 deletions

diff --git a/src/intervals.c b/src/intervals.c
index a9c4f5aed0b..5aa68a359d6 100644
--- a/src/intervals.c
+++ b/src/intervals.c
@@ -1404,10 +1404,7 @@ offset_intervals (struct buffer *buffer, ptrdiff_t start, ptrdiff_t length)
     adjust_intervals_for_insertion (buffer_intervals (buffer),
                                     start, length);
   else
-    {
-      assume (- TYPE_MAXIMUM (ptrdiff_t) <= length);
-      adjust_intervals_for_deletion (buffer, start, -length);
-    }
+    adjust_intervals_for_deletion (buffer, start, -length);
 }
 
 /* Merge interval I with its lexicographic successor. The resulting