Textdatei manipulieren mit sed

A1      228484       NCF2_rs2274064  UNKNOWN 
A2      234872       NCF2_rs2274064  UNKNOWN 
A3      235050       NCF2_rs2274064  UNKNOWN 
A7      228484       ATP13A4_rs6788448       UNKNOWN 
A8      234872       ATP13A4_rs6788448       UNKNOWN
A9      235050       ATP13A4_rs6788448       UNKNOWN 

grep rs2274064 foo.txt >bar.txt
while IFS= read -r line; do sed -i 's/"$line"//g' foo.txt; done <bar.txt