Using sed steam editor to replace a specific string of regular and special characters
It seems that you also want to strip away the semicolon, too: Hence:
sed -e "s/'/'/g" file > file.new
or without output redirection, modifying in-place:
sed -ie "s/'/'/g" file
The 'g' modifier signals that a global substitution (i.e. all occurrences in each line) is desired.
If you have a string to filter this will look like:
echo "hello'world"|sed -e "s/'/'/g"
hello'world