[Buildroot] [PATCH 2/2] docs/manual: ditch redundant -f 'rm' flag

[Peter Korsgaard]

>>>>> "Luca" == Luca Ceresoli via buildroot <buildroot at buildroot.org> writes:

 > The value of the RM variable in make is 'rm -f', thus the additional -f is
 > redundant. Avoid it on the docs to avoid developers taking it as a good
 > example to follow.

 > Signed-off-by: Luca Ceresoli <luca.ceresoli at bootlin.com>

Committed to 2023.02.x, thanks.

-- 
Bye, Peter Korsgaard