Only run wsl2-ssh-agent if we're in a WSL env

.config/fish/config.fish

@@ -42,14 +42,6 @@ if test -f ~/.bash_aliases
     source ~/.bash_aliases
 end
 
-# Alias windows openSSH installation
-# set WIN_OPENSSH_DIR /mnt/c/Windows/System32/OpenSSH
-# for file in $WIN_OPENSSH_DIR/*
-#    set base_name (basename $file)
-#    set alias_name (string replace -r '\.exe$' '' $base_name)
-#    alias $alias_name $file
-# end
-
 # Enable programmable completion features
 if test -f /usr/share/fish/completions
     source /usr/share/fish/completions
@@ -82,7 +74,7 @@ set -gx PATH "$HOME/.local/bin" $PATH
 # Cargo setup
 source "$HOME/.cargo/env.fish"
 
-if status is-login
+if status is-login and test -n "$WSL_DISTRO_NAME"
   wsl2-ssh-agent | source
 end