[roll] Roll fuchsia [kernel_cmdline] Remove now-unused virtcon kernel_cmdline() targets

These have been moved into assembly, and no longer need to exist as
kernel_cmdline() targets.

Original-Bug: b/352745823
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1099246
Original-Revision: 2236fcff3dd5772cce803a02c96f97d98bc0b799
GitOrigin-RevId: 77fc0ac9b584945e23f7ee05f39226d7339551b6
Change-Id: Ia3ca6afa52b4ae85e9b13c9a3d2bf8111907afc6

Author: Aaron Wood

stem

@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="469e8eab477e1b9447e27802cb2aba6c054d5475"/>
+             revision="2236fcff3dd5772cce803a02c96f97d98bc0b799"/>
   </projects>
   <hooks>
     <hook name="install-environment"