chore: drop third party lib for reading flac header

thirdparty/flac.lua

@@ -1,47 +0,0 @@
-flac = {}
-
-function flac:include(includes)
-	if includes:handle(self:name()) then
-		includedirs {
-			path.join(ThirdPartyFolder(), "flac")
-		}
-	end
-end
-
-function flac:link(links)
-	links:add(self:name())
-end
-
-function flac:use()
-	
-end
-
-function flac:name()
-	return "flac"
-end
-
-function flac:project()
-	local folder = ThirdPartyFolder()
-	local includes = Includes:create()
-
-	project(self:name())
-        targetdir(TargetDirectoryLib)
-		location "%{wks.location}/thirdparty/%{prj.name}"
-		kind "StaticLib"
-		language "C"
-		
-		files { 
-			path.join(folder, "flac/foxen/*.h"),
-			path.join(folder, "flac/foxen/*.c")
-		}
-		
-		defines {
-			"_CRT_SECURE_NO_WARNINGS",
-			"_CRT_NONSTDC_NO_DEPRECATE"
-		}
-		
-		self:include(includes)
-
-		-- Disable warnings. They do not have any value to us since it is not our code.
-		warnings "off"
-end