please.sh update_vs_branch: no longer pass MSVC=1

Since af5e32d0d3e (Merge pull request #1304 from
jeffhostetler/vs2017_vcpkg, 2017-12-20), it is neither necessary nor
advisable to use MSVC=1 for the vcxproj target: it would initialize the
vcpkg system, requiring a Visual Studio installation (which is, funnily
enough, not necessary if only generating the Visual Studio projects).

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

please.sh

@@ -1291,7 +1291,7 @@ update_vs_branch () { # [--worktree=<path>] [--remote=<remote>] [--branch=<branc
 	 fi &&
 	 git reset --hard &&
 	 git checkout --force refs/remotes/"$remote/$branch"^0 &&
-	 make MSVC=1 vcxproj &&
+	 make vcxproj &&
 	 git push "$remote" +HEAD:refs/heads/vs/"$branch" ||
 	 die "Could not push vs/$branch\n") ||
 	exit