Problem: Invalid 32bit issues when using Conan

[gummif]

Solution: Remove architechture checks from cmake version file

Since this is a header only library there is no need to check for 32 vs 64bits.

See similar problem: doctest/doctest#225

[coveralls]

Pull Request Test Coverage Report for Build 313

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 86.558%

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Totals
Change from base Build 311:	0.0%
Covered Lines:	689
Relevant Lines:	796

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💛 - Coveralls

[sigiesec]

It's not that obvious why this is necessary. Could you maybe extend the comment so that this can be understood easier, and the risk someone removes it accidentally again is reduced? I think this is quite a nice explanation: https://github.com/catchorg/Catch2/blob/master/CMakeLists.txt#L140

[sigiesec]

Thanks!