WIP: Remove clean-lib-sapl (build is broken because the compiler does not support -sapl any more)

To do:

• There is also Sapl stuff in clean-classic. I'm unsure what that distribution should look like.

clean-lib-sapl/linux-x64/txt/StdEnvSapl.env

-	Environment
-		EnvironmentName:	StdEnv SAPL
-		EnvironmentPaths
-			Path:	{Application}/lib/StdEnv
-		EnvironmentCompiler:	lib/exe/cocl::-sapl
-		EnvironmentCodeGen:	lib/exe/cg
-		EnvironmentLinker:	lib/exe/linker
-		EnvironmentDynLink:	lib/exe/linker
-		EnvironmentVersion:	920
-		EnvironmentRedirect:	False
-		EnvironmentCompileMethod:	Pers
-		EnvironmentProcessor:	I386
-		Environment64BitProcessor:	True