eliminates flint and steel (aliased to mt_game fire:flint_and_steel)
eliminates fake_fire:fake_fire (aliased to mt_game fire:permanent_flame)

mt_game already provides a "fake" fire in the form of a "permanent flame", strike a coal block with flint/steel to get it.

modifies default ice block so that it can be "ignited" (ice fire on top) with mt_game flint/steel

Fire mod must be enabled. However, fire damage is NOT required.

There are 3 false positives remaining after this patch, so
the bulk of the issues are fixed now.

This is cleaned up by `cleanfile` (from the linux kernel tree
tool set).

* remove all trailing whitespaces
* make inbox and computer use the prevalent indentation rules
* CRLF->LF where found

Used and re-licensed with permission of LazyJ and jp:

```
[07-27 10:02] <jp__> Hi Vanessa. I replaced the LazyJ's smokes nodes by few particules : https://forum.minetest.net/viewtopic.php?p=149534#p149534
[07-27 10:03] <jp__> Now I think this mod is mature for integrate Homedecor...

[07-27 10:17] <VanessaE> LazyJ: homedecor is LGPL.  your code is GPL.  by extension so is jp's fork.
[07-27 10:18] <VanessaE> I'd like to include his fork of your mod into homedecor modpack.
[07-27 10:18] <VanessaE> your permission is required :)
[07-27 10:18] <LazyJ> Ok.
[07-27 10:18] <LazyJ> What's the difference between LGPL and GPL? I just go with whatever the original author uses.
[07-27 10:19] <VanessaE> beats the hell out of me exactly except LGPL is supposed to make it easier to use code so-licensed in proprietary projects or something.
[07-27 10:19] <VanessaE> I only use it because minetest_game did and I got some code from there.
[07-27 10:20] <LazyJ> Ok with me to use it.
[07-27 10:21] <LazyJ> Credit to semmett9 too.
```