Utilities/Release: Drop machine-specific README

Utilities/Release/README

@@ -1,18 +0,0 @@
-To create a cmake release, make sure the "release" tag is pointing to the
-expected git commit:
-
-https://cmake.org/gitweb?p=cmake.git;a=shortlog;h=refs/heads/release
-
-Then as kitware@hythloth, using an up-to-date CMake:
-
-  cd ~/CMakeReleases/cmake/Utilities/Release
-  mkdir 283rc1
-  cd 283rc1
-  ~/CMakeReleases/build/bin/cmake -DCMAKE_CREATE_VERSION=release -P ../create-cmake-release.cmake
-  ./create-release.sh
-
-
-create-cmake-release.cmake:  script to run to create release sh scripts
-Add or remove machines in create-cmake-release.cmake.
-
-machine_release.cmake : config files for each machine