drop rc_sys funcs from removal schedule

The automagic detection isn't really problematic, and we allow people to
easily override this when detection isn't possible.  On the other hand,
if people haven't configured rc_sys in their rc.conf, the lack of auto
detection can easily lead to an unbootable system.

Further, we're attempting to have a stable shared library ABI, which
dropping funcs from is not feasible.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

FEATURE-REMOVAL-SCHEDULE

@@ -5,27 +5,6 @@ removed, it should also be removed from this file.
 
 ---------------------------
 
-What: rc_sys automatic detection code
-      - Functions for removal: rc_sys_v1, rc_sys_v2
-
-When: 2011/03/01
-
-Why: The original automatic sub-system detection is flawed in that it cannot
-	 safely detect some variables (Using cgroups confused it to think you were
-	 using LXC, and Prefix cannot be detect by definition). Also, almost all of
-	 the detection requires that /proc is available and readable. During early
-	 boot, /proc may not be mounted yet, leading to mis-detection. The readable
-	 condition can also fail under some hardened kernels when running as an
-	 unprivileged user.
-
-	 The new rc_sys_v2 function uses the rc_sys variable from rc.conf. After
-	 the removal, the contents of the rc_sys_v2 function will move into the
-	 rc_sys function.
-
-Who:  Robin H. Johnson <robbat2@gentoo.org>
-
----------------------------
-
 What: oldnet ADSL rp-pppoe mode
 
 When: undecided