chore: remove Go dev preview from docs (#3564)

---

By submitting this pull request, I confirm that my contribution is made under the terms of the [Apache 2.0 license].

[Apache 2.0 license]: https://www.apache.org/licenses/LICENSE-2.0

Author: MrArnoldPalmer

gh-pages/content/overview/features.md

@@ -33,7 +33,7 @@ The following target languages are currently offered by `jsii-pacmak`, or are cu
 | Language   | Status                                         |
 | ---------- | ---------------------------------------------- |
 | C#         | :octicons-check-circle-24: Generally Available |
-| Go         | :octicons-tools-24:        Development         |
+| Go         | :octicons-tools-24:        Generally Available |
 | Java       | :octicons-check-circle-24: Generally Available |
 | JavaScript | :octicons-check-circle-24: Generally Available |
 | Kotlin     | :octicons-tools-24:        Development         |

gh-pages/content/user-guides/lib-author/configuration/targets/go.md

@@ -1,8 +1,5 @@
 # Go
 
-!!! danger
-    The **go** target is currently unstable and not suitable for production use.
-
 To enable go package generation, add the `go` key to the jsii targets configuration:
 
 - `packageName` (optional) - The name of the Go package name. If not specified,

gh-pages/content/user-guides/lib-user/language-specific/go.md

@@ -1,8 +1,5 @@
 # Go
 
-!!! danger
-    The **go** target is currently unstable and not suitable for production use.
-
 **Go** is not a common object-oriented language: the language currently only
 supports composition, not extension. On the other hand, the
 [*jsii type system*][type-system] includes *classes* and *interfaces*, which are