revert changes for ranges

Author: andreyfe1

source/algorithms.tex

@@ -4030,8 +4030,7 @@
 such that for every non-negative integer \tcode{n} less than \tcode{count},
 the following condition holds:
 \tcode{invoke(pred, invoke(proj, *(i + n)), value)}.
-Returns \tcode{\{first, first\}} if \tcode{count <= 0},
-otherwise \tcode{\{last, last\}} if no such iterator is found.
+Returns \tcode{\{last, last\}} if no such iterator is found.
 
 \pnum
 \complexity