build,win: remove LTO parallelisation limit

Signed-off-by: StefanStojanovic <stefan.stojanovic@janeasystems.com>
PR-URL: https://github.com/nodejs/node/pull/65535
Refs: https://github.com/nodejs/node/pull/63114
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

vcbuild.bat

@@ -199,8 +199,6 @@ if defined build_release (
   set projgen=1
   set cctest=1
   set thin_lto=1
-  @REM Parallel LTO link jobs can cause OOM issues, so we limit it to 2 by default for release builds in the release CI.
-  set lto_jobs=2
 )
 
 :: LTO mutual exclusion