CDATA error

Hey,
I have troubled with the closing CDATA error and I have comment out the line:
” $content = str_replace(‘]]>’, “this]]&gt”, $content); “
ignore “this” on the line above, without it will print out ]]>..
just added “//”
and its fixed my google re marketing code trouble.
but I still wondering if it will have any influences on the site.
and if there a reason for this line in the code.
the line found at “/wp-includes/post-template.php”