lib/helpers: Removed unused string_if() function
lib/helpers: Removed unused string_if() function

snip/skylines,Harry-R/skylines,RBE-Avionik/skylines,skylines-project/skylines,Turbo87/skylines,Turbo87/skylines,kerel-fs/skylines,TobiasLohner/SkyLines,shadowoneau/skylines,Turbo87/skylines,Harry-R/skylines,shadowoneau/skylines,RBE-Avionik/skylines,skylines-project/skylines,TobiasLohner/SkyLines,RBE-Avionik/skylines,Harry-R/skylines,snip/skylines,TobiasLohner/SkyLines,kerel-fs/skylines,snip/skylines,shadowoneau/skylines,RBE-Avionik/skylines,skylines-project/skylines,Turbo87/skylines,shadowoneau/skylines,skylines-project/skylines,kerel-fs/skylines,Harry-R/skylines