Remove line numbers from file (NOT lines)

Consider you have a file named t.txt which has below content.

root@localhost:/home/# cat t.txt
1 hjjhhjh3klk 5 ;k;lk;k
2 kjhjkhjkh656 iuyiuy2
3 jghjhghgjh

Notice the line numbers at the starting of each line.We will remove the line numbers but keep the lines intact.
It can be done by below command

root@localhost:/home/# sed -i s'/ *[0-9]* .//' t.txt

Above command will remove the line numbers.Here’s how the file looks after that.

root@localhost:/home/# cat t.txt
hjjhhjh3klk 5 ;k;lk;k
kjhjkhjkh656 iuyiuy2
jghjhghgjh