fzf: remove perl dependency

Since fzf 0.43.0, the history command only uses Perl if it's installed
otherwise uses Awk [1].

[1] 9f7684f6fe

pkgs/tools/misc/fzf/default.nix

@@ -1,26 +1,13 @@
-{ stdenv
-, lib
+{ lib
 , buildGoModule
 , fetchFromGitHub
-, writeShellScriptBin
 , installShellFiles
 , bc
 , ncurses
-, perl
 , testers
 , fzf
 }:
 
-let
-  # on Linux, wrap perl in the bash completion scripts with the glibc locales,
-  # so that using the shell completion (ctrl+r, etc) doesn't result in ugly
-  # warnings on non-nixos machines
-  ourPerl = if !stdenv.isLinux then perl else (
-    writeShellScriptBin "perl" ''
-      export PERL_BADLANG=0
-      exec ${perl}/bin/perl "$@"
-    '');
-in
 buildGoModule rec {
   pname = "fzf";
   version = "0.49.0";
@@ -55,14 +42,9 @@ buildGoModule rec {
         exit 1
     fi
 
-    # Has a sneaky dependency on perl
-    # Include first args to make sure we're patching the right thing
-    substituteInPlace shell/key-bindings.bash \
-      --replace "command -v perl" "command -v ${ourPerl}/bin/perl" \
-      --replace " perl -n " " ${ourPerl}/bin/perl -n "
     # fzf-tmux depends on bc
-   substituteInPlace bin/fzf-tmux \
-     --replace "bc" "${bc}/bin/bc"
+    substituteInPlace bin/fzf-tmux \
+      --replace "bc" "${bc}/bin/bc"
   '';
 
   postInstall = ''