Hide NEP-4 and NEP-8 from README

Author: erikzhang

README.mediawiki

@@ -33,12 +33,6 @@ First review [[nep-1.mediawiki|NEP-1]]. Then clone the repository and add your N
 | Standard
 | Final
 |-
-| [[nep-4.mediawiki|4]]
-| Dynamic Contract Invocation
-| localhuman, unignorant
-| Standard
-| [[nep-8.mediawiki|Replaced]]
-|-
 | [[nep-5.mediawiki|5]]
 | Token Standard
 | Tyler Adams, luodanwg, tanyuan, Alan Fong
@@ -51,12 +45,6 @@ First review [[nep-1.mediawiki|NEP-1]]. Then clone the repository and add your N
 | Standard
 | Final
 |-
-| [[nep-8.mediawiki|8]]
-| Stack Isolation for NeoVM
-| Erik Zhang
-| Standard
-| Final
-|-
 | [[nep-9.mediawiki|9]]
 | URI Scheme
 | Andrei, Apisit

nep-8.mediawiki

@@ -3,7 +3,7 @@
   Title: Stack Isolation for NeoVM
   Author: Erik Zhang <[email protected]>
   Type: Standard
-  Status: Final
+  Status: Obsolete
   Created: 2017-12-26
   Replaces: 4
 </pre>