Remove -c release requirement from wasm-getting-started.md (#1100)

As of `swift-6.2-DEVELOPMENT-SNAPSHOT-2025-06-26-a` passing this option is no longer required for Embedded Swift.

Author: MaxDesiatov

documentation/articles/wasm-getting-started.md

@@ -99,6 +99,5 @@ Hello from WASI!
 allowing the toolchain to produce Wasm binaries that are multiple orders of magnitude smaller. One of the Swift SDKs in the artifact bundle you've installed
 with the `swift sdk install` command is tailored specifically for Embedded Swift.
 
-To build with Embedded Swift SDK, pass its ID as noted in `swift sdk list` output (which has an `-embedded` suffix) in the `--swift-sdk` option. You also have to pass `-c release`
-to `swift build` and `swift run` to enable optimizations required for Embedded Swift.
+To build with Embedded Swift SDK, pass its ID as noted in `swift sdk list` output (which has an `-embedded` suffix) in the `--swift-sdk` option.