* Mono.Posix.dll.sources: Remove Mono.Unix obsolete files.

	* Mono.Posix.dll.sources: Remove Mono.Unix obsolete files.

	* Mono.Unix/StdioFileStream.cs, Mono.Unix/UnixDirectoryInfo.cs, Mono.Unix/UnixEnvironment.cs,
	  Mono.Unix/UnixFileInfo.cs, Mono.Unix/UnixFileSystemInfo.cs, Mono.Unix/UnixGroupInfo.cs,
	  Mono.Unix/UnixIOException.cs, Mono.Unix/UnixMarshal.cs, Mono.Unix/UnixProcess.cs, Mono.Unix/UnixStream.cs,
	  Mono.Unix/UnixSymbolicLinkInfo.cs, Mono.Unix/UnixUserInfo.cs: Remove Obsolete API.
	* Mono.Unix/CdeclFunction.cs, Mono.Unix/IncludeAttribute.cs, Mono.Unix/Stdlib.cs, Mono.Unix/Syscall.cs,
	  Mono.Unix/UnixConvert.cs, Mono.Unix/UnixDirectory.cs, Mono.Unix/UnixFile.cs, Mono.Unix/UnixGroup.cs,
	  Mono.Unix/UnixUser.cs: Delete.
	* Mono.Unix/UnixPath.cs: Remove InvalidPathChars; use GetInvalidPathChars() instead.
	* Mono.Unix/FileTypes.cs: Remove Obsolete API

	* Mono.Unix.Native/NativeConvert.generated.cs: Flush (remove Obsolete members).
	* Mono.Unix.Native/Syscall.cs: Remove invalid utimes(2) wrapper.

svn path=/trunk/mcs/; revision=54964