@mavan Check it out:
Go to Appearance, Editor, content.php
Under <div class="entry-details">
turn off the author
<!-- <?php _e( 'by', 'yoko' ); ?> <?php the_author() ?><br/> -->
Update File
That will turn it off on the Main Page. To turn it off at the bottom of a blog post go to content-single.php
<!-- <div class="author-info">
<?php echo get_avatar( get_the_author_meta( 'user_email' ), apply_filters( 'yoko_author_bio_avatar_size', 70 ) ); ?>
<div class="author-description">
<h3><?php printf( __( 'Author: %s', 'yoko' ), "<a href='" . get_author_posts_url( get_the_author_meta( 'ID' ) ) . "' title='" . esc_attr( get_the_author() ) . "' rel='me'>" . get_the_author() . "</a>" ); ?></h3>
<p><?php the_author_meta( 'description' ); ?></p>
</div> -->
I left the one on top of the blog post on to keep a signature.