doc: remove notes section in OSSL_ENCODER.pod
Fixes
The note wasn't adding anything useful.
@@ -108,12 +108,6 @@ otherwise 0.
OSSL_ENCODER_number() returns an integer.
-=head1 NOTES
-
-OSSL_ENCODER_fetch() may be called implicitly by other fetching
-functions, using the same library context and properties.
-Any other API that uses keys will typically do this.
-
=head1 SEE ALSO
L<provider(7)>, L<OSSL_ENCODER_CTX(3)>, L<OSSL_ENCODER_to_bio(3)>,
