pgsql: Give nbtree move right function internal linkage.

Give nbtree move right function internal linkage.

Declare _bt_moveright() static.  This is a minor modularity win; the
routine was already private to nbtsearch.c for all practical purposes.

Author: Matthias van de Meent <boekewurm+postgres@gmail.com>
Discussion: https://postgr.es/m/CAEze2WgWVzCNEXQB_op5MMZMDgJ3fg3AhVm6bq2iZPpJNXGhWw@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/1343ae954ceaf591d6b4271f2b0a93390d56501d

Modified Files
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src/backend/access/nbtree/nbtsearch.c | 5 ++++-
src/include/access/nbtree.h           | 3 ---
2 files changed, 4 insertions(+), 4 deletions(-)