[windows-1809] fix powershell profile

windows-1809/devel/powershell/30-Vcpkg-CMake.ps1

-# SPDX-License-Identifier: AGPL-3.0-or-later
-
-#
-# Executes CMake with vcpkg toolchain file
-#
-function Vcpkg-CMake {
-	if ($args[0] -eq "--build") {
-		Must-Run "/Program Files/CMake/bin/cmake.exe" $args
-	} else {
-		Must-Run "/Program Files/CMake/bin/cmake.exe" '-DCMAKE_TOOLCHAIN_FILE=${venv:CMAKE_TOOLCHAIN_FILE}' "-DVCPKG_TARGET_TRIPLET=${env:VCPKG_TARGET_TRIPLET}" $args
-	}
-}
-
-# Use Vcpkg-CMake by default
-Set-Alias -Name cmake -Value Vcpkg-CMake