Update release.md (#19)

Remove a wrong statement in the release guide.

release.md

@@ -19,7 +19,6 @@ Use SVN to upload the files(tgz, asc and sha512) in the `release` folder to `htt
 
 The test build of x.y.z is available.
 
-This is our Apache release.
 We welcome any comments you may have, and will take all feedback into
 account if a quality vote is called for this build.
 
@@ -125,4 +124,4 @@ SkyWalking Resources:
 
 
 - Apache SkyWalking Team
-- ```
\ No newline at end of file
+- ```