Load gravity forms JS in footer

movegfjstofooter.php

// GF method: http://www.gravityhelp.com/documentation/gravity-forms/extending-gravity-forms/hooks/filters/gform_init_scripts_footer/
add_filter( 'gform_init_scripts_footer', '__return_true' );

// solution to move remaining JS from https://bjornjohansen.no/load-gravity-forms-js-in-footer
add_filter( 'gform_cdata_open', 'wrap_gform_cdata_open' );
function wrap_gform_cdata_open( $content = '' ) {
  $content = 'document.addEventListener( "DOMContentLoaded", function() { ';
  return $content;
}
add_filter( 'gform_cdata_close', 'wrap_gform_cdata_close' );
function wrap_gform_cdata_close( $content = '' ) {
  $content = ' }, false );';
  return $content;
}

From GF 2.5 this breaks the forms (that have coniditional logic). See https://community.gravityforms.com/t/gf-2-5-7-5-is-broken/10323/8

I'd advice not using this any more and removing it anywhere where it is added.

Correct, this code is redundant since GF 2.5+