Update appveyor.yml (#590)
Update appveyor.yml (#590)

remove Win32 builds. 32-bit Windows has limited support and all new Windows OSes are 64-bit.
[ci skip]
Signed-off-by: The MathWorks, Inc. <553a03f5161ee6f4083f360816a2718678bbf903@mathworks.com>
CppMicroServices/CppMicroServices,CppMicroServices/CppMicroServices,CppMicroServices/CppMicroServices,CppMicroServices/CppMicroServices,CppMicroServices/CppMicroServices