pgsql: Revert copyright script changes to binary *.key files

Revert copyright script changes to binary *.key files

This reverts part of commit 7559d8ebfa. The copyright script has
already been updated to skip *.key files.

Reported-by: Alvaro Herrera

Discussion: /messages/by-id/20200102184059.GA25435@alvherre.pgsql

Backpatch-through: master

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/344c26915136fa54c4a1bf54074ba15090b32721

Modified Files
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src/test/ssl/ssl/client-der.key | Bin 1192 -> 1191 bytes
src/test/ssl/ssl/client-encrypted-der.key | Bin 1192 -> 1191 bytes
2 files changed, 0 insertions(+), 0 deletions(-)