Utilities/Release: Drop OS X ppc/i386 binary

Users with OS X 10.5 or below can build from source or use an older
CMake version.

Utilities/Release/create-cmake-release.cmake

@@ -7,8 +7,7 @@ file(MAKE_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/logs)
 
 set(RELEASE_SCRIPTS_BATCH_1
   dash2win64_release.cmake    # Windows
-  dashmacmini2_release.cmake  # Mac Darwin universal ppc;i386
-  dashmacmini5_release.cmake  # Mac Darwin64 universal x86_64;i386
+  dashmacmini5_release.cmake  # OS X x86_64
   magrathea_release.cmake     # Linux
   linux64_release.cmake       # Linux x86_64
 )

Utilities/Release/dashmacmini2_release.cmake

-set(PROCESSORS 2)
-set(CMAKE_RELEASE_DIRECTORY /Users/kitware/CMakeReleaseDirectory)
-set(USER_OVERRIDE "set(CMAKE_CXX_LINK_EXECUTABLE \\\"gcc  <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS>  -o <TARGET> <LINK_LIBRARIES>  -shared-libgcc -lstdc++-static\\\")")
-set(BOOTSTRAP_ARGS "--prefix=/ --docdir=doc/cmake")
-set(HOST dashmacmini2)
-set(MAKE_PROGRAM "make")
-set(MAKE "${MAKE_PROGRAM} -j2")
-set(CPACK_BINARY_GENERATORS "DragNDrop TGZ TZ")
-set(CPACK_DMG_FORMAT "UDBZ") #build using bzip2 for smaller package size
-set(INITIAL_CACHE "
-CMAKE_BUILD_TYPE:STRING=Release
-CMAKE_OSX_ARCHITECTURES:STRING=ppc;i386
-CMAKE_USE_OPENSSL:BOOL=ON
-OPENSSL_CRYPTO_LIBRARY:FILEPATH=/Users/kitware/openssl-1.0.1g-install/lib/libcrypto.a
-OPENSSL_INCLUDE_DIR:PATH=/Users/kitware/openssl-1.0.1g-install/include
-OPENSSL_SSL_LIBRARY:FILEPATH=/Users/kitware/openssl-1.0.1g-install/lib/libssl.a
-CMAKE_SKIP_BOOTSTRAP_TEST:STRING=TRUE
-CPACK_SYSTEM_NAME:STRING=Darwin-universal
-BUILD_QtDialog:BOOL=TRUE
-CMake_GUI_DISTRIBUTE_WITH_Qt_LGPL:BOOL=TRUE
-CMake_INSTALL_DEPENDENCIES:BOOL=ON
-QT_QMAKE_EXECUTABLE:FILEPATH=/Users/kitware/Support/qt-4.8.0/install/bin/qmake
-")
-get_filename_component(path "${CMAKE_CURRENT_LIST_FILE}" PATH)
-include(${path}/release_cmake.cmake)