[doc] drop out-dated duplicate of release process document

RELEASE_PROCESS.md

@@ -1,53 +0,0 @@
-## Making release of Kotlin/Native ##
-
-### Move version up in the repository ###
-
-   * Increment `konanVersion` in topmost `gradle.properties` and in `KonanVersion.kt`
-   * Create entry for new release in CHANGELOG.md file (consult git history for features included)
-   * Update RELEASE_NOTES.md with actual information on the released bits
-
-### Create tagged release branch ###
-
-    git checkout -b v0.X-fixes
-    git tag -a v0.X -m "version 0.X"
-    git push --set-upstream origin v0.X-fixes --tags
-
-### Build for all supported platforms ###
-
-Repeat those steps for macOS, Linux x86-64 and Windows x64 machines/VMs:
-
-    git pull
-    git checkout -b v0.X-fixes origin/v0.X-fixes
-    ./gradlew clean bundle
-
-Make sure all samples are buildable from the bundle with both Gradle and shell script builds.
-
-### Create GitHub release ###
-
- Create release at [`GitHub release page`](https://github.com/JetBrains/kotlin-native/releases).
-We usually mark 0.X releases as pre-releases.
-
- Upload builds created on the previous step to the GitHub release page.
-
-
-### Upload builds ###
-
- Upload build to CDN at `upload.cds.intellij.net/builds/releases/<version>/<macos|linux|windows>`:
- 
-    CDN_URL=upload.cds.intellij.net CDN_USER=... CDN_PASS=... ./gradlew :uploadBundle
- 
-Bundles are available at `http://download.jetbrains.com/kotlin/native/releases/<version>/<platform>/<build>`
-in few minutes after upload.
-
- Upload Gradle plugin to BinTray
-
-    BINTRAY_USER=... BINTRAY_KEY=... ./gradlew :gradlePluginUpload
-
-### Blog post ###
- 
- Notify #kotlin-native channel on public Slack.
- 
- Write a meaningfully sized blog post describing new release at `https://blog.jetbrains.com`.
-Login at `https://blog.jetbrains.com/kotlin/wp-login.php`. Synchronize with @abreslav and @yole.
-Publish and enjoy!
-