contrib: harfbuzz: Revert back to autotools

Their CMakeLists.txt uses an agglomerated build, which requires us to
enable big-obj support. However, on older version of binutils, this will
cause objcopy to crash when extracting debug symbols
9 jobs for !4 with use_autotools_for_harfbuzz in 38 minutes and 14 seconds (queued for 1 second)
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