Replace “Profile” Text in header by using avarta

Hi,

I used this code in general-header.php. which help display avarta in frontend for logged in user.  Can you help me correct it?

    <?php

        global $current_user;

        if ( is_user_logged_in() ):

            wp_get_current_user();

            echo get_avatar( $current_user->ID, 28 );

        endif;

    ?>

I want to remove “icon & profile” in header ==> Replace it with clickable avarta logged in user.

2) In general-header.php i can’t find the “icon & profile location”, where is it, which number line of code?