Are these lines in my S-S really useful?

[AmigaMance]

 Hi. I'm curious to know if the enviroment variables which are defined in the below lines in my S-S, are really being used by the OS or any other programs.
Will there be any consequnces if i remove (comment) them?:

SetEnv Language "english"
SetEnv Workbench $Workbench
SetEnv Kickstart $Kickstart
UnSet Workbench
UnSet Kickstart      

[Matt_H]

The system won't blow up immediately, but you might have problems with some programs or scripts if you get rid of them.

[AmigaMance]

@Matt_H

 Hmm, ok. I disabled the SetEnv Language line only, since the Language variable is set even without it. Probably by IPrefs while it reads the locale.prefs or something.