aaxtomp3: drop osh patch

Upstream has resolved oilshell/oil#1446, and nixpkgs consumed the fix.

pkgs/applications/audio/aaxtomp3/default.nix

@@ -27,10 +27,6 @@ resholve.mkDerivation rec {
     hash = "sha256-7a9ZVvobWH/gPxa3cFiPL+vlu8h1Dxtcq0trm3HzlQg=";
   };
 
-  # use whitespace to show osh arithmetic is not file redirection
-  # see: https://github.com/oilshell/oil/issues/1446
-  patches = [./osh.patch];
-
   postPatch = ''
     substituteInPlace AAXtoMP3 \
       --replace 'AAXtoMP3' 'aaxtomp3'

pkgs/applications/audio/aaxtomp3/osh.patch

@@ -1,15 +0,0 @@
-diff --git a/AAXtoMP3 b/AAXtoMP3
-index 90566ad..71e94da 100755
---- a/AAXtoMP3
-+++ b/AAXtoMP3
-@@ -200,8 +200,8 @@ progressbar() {
- 
-   #draw progressbar with one # for every 5% and blank spaces for the missing part.
-   progressbar=""
--  for (( n=0; n<(percentage/5); n++ )) ; do progressbar="$progressbar#"; done
--  for (( n=0; n<(20-(percentage/5)); n++ )) ; do progressbar="$progressbar "; done
-+  for (( n=0; n< (percentage/5); n++ )) ; do progressbar="$progressbar#"; done
-+  for (( n=0; n< (20-(percentage/5)); n++ )) ; do progressbar="$progressbar "; done
- 
-   #print progressbar
-   echo -ne "Chapter splitting: |$progressbar| $print_percentage% ($part/$total chapters)\r"