pgsql: Revert "Add missing padding from MemoryChunk struct"

Revert "Add missing padding from MemoryChunk struct"

This reverts commit df0f4feef.  It turns out the problem which was causing
the 32-bit ARM and PPC animals to fail was due to a MAXALIGN problem in
slab.c.  This was fixed by d5ee4db0e.  The padding that was added in
df0f4feef would only do anything on machines where uint64 was not aligned
to 8 bytes.  The 32-bit machines which were failing are not in that
category, so revert this commit.

Discussion: https://postgr.es/m/3209100.1661787561@sss.pgh.pa.us

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/5495796ad12aae971137d184ff25add8f6b03968

Modified Files
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src/include/utils/memutils_memorychunk.h | 8 --------
1 file changed, 8 deletions(-)