pgsql: Revert "Optimize various aggregate deserialization functions"

Revert "Optimize various aggregate deserialization functions"

This reverts commit 608fd198def5390c3490bfe903730207dfd8eeb4.

On 2nd thoughts, the StringInfo API requires that strings are NUL
terminated and pointing directly to the data in a bytea Datum isn't NUL
terminated.

Discussion: https://postgr.es/m/CAApHDvorfO3iBZ=xpiZvp3uHtJVLyFaPBSvcAhAq2HPLnaNSwQ@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/4f3b56eea23554e1756a26080db273156f23f4f2

Modified Files
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src/backend/utils/adt/array_userfuncs.c | 24 ++++++++---------
src/backend/utils/adt/numeric.c         | 48 ++++++++++++++++-----------------
src/backend/utils/adt/varlena.c         | 12 ++++-----
3 files changed, 42 insertions(+), 42 deletions(-)