Remove confusing version information

Change-Id: I85710c472b7bb82279e9fdcd6ca2cca19877bab2

HISTORY

@@ -1,4 +1,4 @@
-Change notes from older releases. For current info see RELEASE-NOTES-3.0.0.
+Change notes from older releases. The extension math does now follow the releases of MediaWiki core.
 
 == Math 2.0 ==
 

RELEASE-NOTES-3.0.0

@@ -1,15 +0,0 @@
-== Math 3.0.0 ==
-
-Math 3.0.0 is an alpha-quality branch and is not recommended for use in
-production.
-
-=== Configuration changes in 3.0.0 ===
-
-
-=== New features in 3.0.0 ===
-* (T87941) Add extension.json, empty php entry point.
-* (T106631,T88324) Convert the math integer constants to string constants.
-* (T106630) Rename constants.
-* (T99369) Remove client-side MathJax support.
-
-=== Bug fixes in 3.0.0 ===

extension.json

@@ -1,6 +1,5 @@
 {
 	"name": "Math",
-	"version": "3.0.0",
 	"author": [
 		"Tomasz Wegrzanowski",
 		"Brion Vibber",