Remove nss_wrapper From Exporter

Removes the nss_wrapper from the crunchy-postgres-exporter, aligning
exporter container configuration in PGO v4.x with PGO v5.x (PGO v5.x
does not utilize the nss_wrapper when running the PostgrSQL exporter).

Issue: [ch12157]

Author: andrewlecuyer

build/crunchy-postgres-exporter/Dockerfile

@@ -61,11 +61,6 @@ EXPOSE 9187
 # volume permissions are applied when building the image
 VOLUME ["/conf"]
 
-# Defines a unique directory name that will be utilized by the nss_wrapper in the UID script
-ENV NSS_WRAPPER_SUBDIR="exporter"
-
-ENTRYPOINT ["/opt/cpm/bin/uid_daemon.sh"]
-
 USER 2
 
 CMD ["/opt/cpm/bin/start.sh"]