pgsql: Remove use of byte-masking macros in record_image_cmp

Remove use of byte-masking macros in record_image_cmp

These were introduced in 4cbb646334b3b998a29abef0d57608d42097e6c9, but
after further analysis and testing, they should not be necessary and
probably weren't the part of that commit that fixed anything.

Reviewed-by: Michael Paquier <michael.paquier@gmail.com>

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/0b5e33f667a2042d7022da8bef31a8be5937aad1

Modified Files
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src/backend/utils/adt/rowtypes.c | 65 ++--------------------------------------
1 file changed, 3 insertions(+), 62 deletions(-)