The old, legacy (and unused) code in which the scoreboard was totally

The old, legacy (and unused) code in which the scoreboard was totally
and completely contained in a file (SCOREBOARD_FILE) has been
removed. This does not affect scoreboards which are *mapped* to
files using named-shared-memory at all. This implies that scoreboards
must be based, at some level, on native shared memory (mmap, shm_open,
shmget, whatever), but the code has assumed that for quite awhile
now. Having the scoreboard be *based* on a file makes no sense today.

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git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@94306 13f79535-47bb-0310-9956-ffa450edef68