Revert "meson: fix build for arch:i686 , cc:gcc-7"

This reverts commit 80347ef5.
Adding -march=native is a bad idea as it breaks invalidates individual
extension switches (sse, ...)
Issue #29 was fixed in e75a27b5.
4 jobs for master in 45 minutes and 3 seconds (queued for 8 minutes and 38 seconds)
Status Job ID Name Coverage
  Build
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latest-autotools-lcms

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latest-autotools-nolcms

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latest-meson-lcms

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passed #309076
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