fix: remove default memory limit (#5355)

Having NODE_OPTIONS set is unexpected and although the later flag should
override the previous flag it is not certain that will always be the
case.

Also some users are having issues with the 2 GB limit.

src/node/wrapper.ts

@@ -322,7 +322,6 @@ export class ParentProcess extends Process {
       env: {
         ...process.env,
         CODE_SERVER_PARENT_PID: process.pid.toString(),
-        NODE_OPTIONS: `--max-old-space-size=2048 ${process.env.NODE_OPTIONS || ""}`,
       },
       stdio: ["pipe", "pipe", "pipe", "ipc"],
     })