Revert of Suppress MSI/MSM validation when building remoting MSI. (patchset #1...

Revert of Suppress MSI/MSM validation when building remoting MSI. (patchset #1 id:1 of https://codereview.chromium.org/1020823003/)

Reason for revert:
This did the trick. Reverting this change and putting something durable in the signing infrastructure. Thanks.

Original issue's description:
> Suppress MSI/MSM validation when building remoting MSI.
>
> I believe this will unblock a required migration in our signing
> infrastructure.
>
> BUG=none
> R=garykac@chromium.org
>
> Committed: https://crrev.com/819da16a0d1246383bb8fe3c483fe7ace98a60b7
> Cr-Commit-Position: refs/heads/master@{#321438}

TBR=garykac@chromium.org,jamiewalch@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none

Review URL: https://codereview.chromium.org/1028733002

Cr-Commit-Position: refs/heads/master@{#321596}

remoting/host/installer/win/parameters.json

@@ -23,7 +23,6 @@
   "light": {
     "switches": [
       "-cultures:en-us",
-      "-sval",
       "-sw1076"
     ]
   }