Remove redundant manpages and references to them.

doc/crypto/BIO_ctrl_get_read_request.pod

-=pod
-
-=head1 NAME
-
- BIO_ctrl_get_read_request - Find out how much bytes are were requested from the BIO
-
-=head1 SYNOPSIS
-
- #include <openssl/bio.h>
-
- size_t BIO_ctrl_get_read_request(BIO *bio);
-
-=head1 DESCRIPTION
-
-BIO_ctrl_get_read_request() returns the number of bytes that were last
-requested from B<bio> by a BIO_read() operation. This is useful e.g. for
-BIO pairs, so that the application knows how much bytes to supply to B<bio>.
-
-=head1 BUGS
-
-When B<bio> is NULL, the OpenSSL library calls assert().
-
-=head1 RETURN VALUES
-
-The following return values can occur:
-
-=over 4
-
-=item E<gt>=0
-
-The number of bytes requested.
-
-=back
-
-=head1 SEE ALSO
-
-L<bio(3)|bio(3)>, L<BIO_s_mem(3)|BIO_s_mem(3)>,
-L<BIO_new_bio_pair(3)|BIO_new_bio_pair(3)>

doc/crypto/BIO_ctrl_pending.pod

-=pod
-
-=head1 NAME
-
-BIO_ctrl_pending - Find out how much bytes are buffered in a BIO
-
-=head1 SYNOPSIS
-
- #include <openssl/bio.h>
-
- size_t BIO_ctrl_pending(BIO *bio);
-
-=head1 DESCRIPTION
-
-BIO_ctrl_pending() returns the number of bytes buffered in a BIO.
-
-=head1 BUGS
-
-When B<bio> is NULL, the OpenSSL library calls assert().
-
-=head1 RETURN VALUES
-
-The following return values can occur:
-
-=over 4
-
-=item E<gt>=0
-
-The number of bytes pending the BIO.
-
-=back
-
-=head1 SEE ALSO
-
-L<bio(3)|bio(3)>, L<BIO_s_mem(3)|BIO_s_mem(3)>,
-L<BIO_new_bio_pair(3)|BIO_new_bio_pair(3)>

doc/crypto/BIO_seek.pod

-=pod
-
-=head1 NAME
-
-BIO_seek, BIO_tell - file BIO operations
-
-=head1 SYNOPSIS
-
- #include <openssl/bio.h>
-
- #define BIO_seek(b,ofs)	(int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
- #define BIO_tell(b)		(int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
-
-=head1 DESCRIPTION
-
-BIO_seek() sets the file position pointer to B<ofs> bytes from start of file.
-
-BIO_tell() returns the current file position.
-
-=head1 RETURN VALUES
-
-BIO_seek() returns the same value as the underlying fseek() function:
-0 for success or -1 for failure.
-
-BIO_tell() returns the current file position.
-
-=head1 SEE ALSO
-
-TBA
-

doc/crypto/bio.pod

@@ -40,8 +40,6 @@ BIO).
 =head1 SEE ALSO
 
 L<BIO_ctrl(3)|BIO_ctrl(3)>,
-L<BIO_ctrl_get_read_request(3)|BIO_ctrl_get_read_request(3)>,
-L<BIO_ctrl_pending(3)|BIO_ctrl_pending(3)>,
 L<BIO_f_base64(3)|BIO_f_base64(3)>,
 L<BIO_f_cipher(3)|BIO_f_cipher(3)>, L<BIO_f_md(3)|BIO_f_md(3)>,
 L<BIO_f_null(3)|BIO_f_null(3)>, L<BIO_f_ssl(3)|BIO_f_ssl(3)>,
@@ -52,6 +50,5 @@ L<BIO_s_accept(3)|BIO_s_accept(3)>, L<BIO_s_bio(3)|BIO_s_bio(3)>,
 L<BIO_s_connect(3)|BIO_s_connect(3)>, L<BIO_s_fd(3)|BIO_s_fd(3)>,
 L<BIO_s_file(3)|BIO_s_file(3)>, L<BIO_s_mem(3)|BIO_s_mem(3)>,
 L<BIO_s_null(3)|BIO_s_null(3)>, L<BIO_s_socket(3)|BIO_s_socket(3)>,
-L<BIO_seek(3)|BIO_seek(3)>,
 L<BIO_set_callback(3)|BIO_set_callback(3)>,
 L<BIO_should_retry(3)|BIO_should_retry(3)>