style: remove unused import (#61)

vil02 · web-flow · commit 1314f1cb2c2a · 2023-11-21T18:22:06.000+01:00
diff --git a/dynamic_programming/catalan_numbers.nim b/dynamic_programming/catalan_numbers.nim
@@ -12,7 +12,6 @@
     https://oeis.org/A000108
 ]#
 import std/math
-import std/sequtils
 {.push raises: [].}
 
 func catalanNumbersRecursive(index: Natural): Positive =
