Revert "windows: Add preliminary WSL support for npm and npx"

This reverts commit 3471d52.

PR-URL: #527
Credit: @craigloewen-msft
Close: #527
Reviewed-by: @mikemimik

Author: craigloewen-msft

bin/npm

@@ -8,10 +8,6 @@ case `uname` in
 esac
 
 NODE_EXE="$basedir/node.exe"
-if [ -x "$NODE_EXE" ] && [ -f "/bin/wslpath" ]; then # run the corresponding command prompt when Node for Windows is executed within WSL
-  cmd.exe /c `wslpath -w "$basedir/npm.cmd"` "$@"
-  exit $?
-fi
 if ! [ -x "$NODE_EXE" ]; then
   NODE_EXE="$basedir/node"
 fi

bin/npx

@@ -8,10 +8,6 @@ case `uname` in
 esac
 
 NODE_EXE="$basedir/node.exe"
-if [ -x "$NODE_EXE" ] && [ -f "/bin/wslpath" ]; then # run the corresponding command prompt when Node for Windows is executed within WSL
-  cmd.exe /c `wslpath -w "$basedir/npx.cmd"` "$@"
-  exit $?
-fi
 if ! [ -x "$NODE_EXE" ]; then
   NODE_EXE=node
 fi