pgsql: Refactor non-supported compression error message in toast_compre

Refactor non-supported compression error message in toast_compression.c

This code used a NO_LZ4_SUPPORT() macro to issue an error in the code
paths where LZ4 [de]compression is attempted but the build does not
support it. This commit refactors the code to use a more flexible error
message so as it can be used for other compression methods, where the
method is given in input of macro.

Extracted from a larger patch by the same author.

Author: Nikhil Kumar Veldanda <veldanda(dot)nikhilkumar17(at)gmail(dot)com>
Reviewed-by: Kirill Reshke <reshkekirill(at)gmail(dot)com>
Discussion: https://postgr.es/m/CAFAfj_HX84EK4hyRYw50AOHOcdVi-+FFwAAPo7JHx4aShCvunQ@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/1dbe6f76677c26096518998fdc72dab771a98913

Modified Files
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src/backend/access/common/toast_compression.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)