Remove "sha1.h".

This was removed from bionic by commit c82c0b7e072491da4818e7de37411fbb2055fce1
in 2014-06. The symbols are still in NDK cruft for LP32, but no longer in the
NDK's libc.so. Microsoft points out that we should probably remove the header
too.

Bug: 11156955
Change-Id: Id463f8f20d3d8c4428f6aecb317577d78ccad215
1 file changed