[issue18722] Remove uses of the register keyword

[STINNER Victor]

STINNER Victor added the comment:

+1 for removal of the register keyword.

I hope that nowadays, no compiler needs register hint to be able to optimize correctly a function. GCC knows better than me which variables must be "optimized".

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nosy: +haypo

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18722>
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