Removing powered by wordpress from footer

Hi,

I want to keep the “copyright” info in my footer, which I was able to reword. What I want to remove is the 2nd line in the footer:

“Theme: ColorMag by ThemeGrill. Powered by WordPress.”

I am not overly familiar with php code, so not sure how to do this. When I remove the “footer-socket-left-sectoin” in my footer.php (yes, I have this in my child theme folder) I lose everything in the footer. Including the copyright info that I want to keep.

Any suggestions? Footer php code is below:

</div><!-- .inner-wrap -->

	</div><!-- #main -->

   <?php if ( is_active_sidebar('colormag_advertisement_above_the_footer_sidebar') ) { ?>

      <div class="advertisement_above_footer">

         <div class="inner-wrap">

            <?php dynamic_sidebar('colormag_advertisement_above_the_footer_sidebar'); ?>

         </div>

      </div>

   <?php } ?>

	<?php do_action( 'colormag_before_footer' ); ?>

		<footer id="colophon" class="clearfix">

			<?php get_sidebar( 'footer' ); ?>

			<div class="footer-socket-wrapper clearfix">

				<div class="inner-wrap">

					<div class="footer-socket-area">

                  <div class="footer-socket-right-section">

   				 <?php if( get_theme_mod( 'colormag_social_link_activate', 0 ) == 1 ) { colormag_social_links(); } ?>   

                  </div>

                  <div class="footer-socket-left-sectoin">

   						<?php do_action( 'colormag_footer_copyright' ); ?>

                  </div>

					</div>

				</div>

			</div>

		</footer>

		<a href="#masthead" id="scroll-up"><i class="fa fa-chevron-up"></i></a>

	</div><!-- #page -->

	<?php wp_footer(); ?>

</body>

</html>