CDRIVER-2010 unused TYPE_BIT macro
CDRIVER-2010 unused TYPE_BIT macro

No longer needed once we've applied Petr Písař's previous fix that
avoids an integer overflow and ensures GCC 7 compatibility.

rcsanchez97/libbson,mapr/libbson,bjori/libbson,bjori/libbson,mapr/libbson,mongodb/libbson,rcsanchez97/libbson,ajdavis/libbson,bjori/libbson,mongodb/libbson,mongodb/libbson,ajdavis/libbson,rcsanchez97/libbson,mapr/libbson,ajdavis/libbson