Remove emptied lines instead of emptying only the contents of the line

[Bennet-Sunder]

Polyglot piranha currently empties a line instead of removing this line. This means we will have to manually delete all such blank lines post polyglot execution.

Running linters might not be straightforward on larger repositories as it might cleanup unmodified lines as well leading to a huge diff.

[Bennet-Sunder]

@ketkarameya could you pls assign this to me, I'll have a look at fixing this.