Removing that line actually makes things worse.
Also cut were a few lines just before that while the Enterprise
is waiting for the impact from the energy pulse. Kirk asks Spock if the screens will protect the ship, to which Spock replies that any calculations to determine this would be impossible.
I also know that some lines were added in that part to the theatrical version for the network version. I only have the DE on disk, so I can't definitively compare any versions.