Fix kotlin-mcp-server example and update samples (#345)

- updated the sdk version in all examples
- fixed `kotlin-mcp-server` example (#331)

## Motivation and Context
Removed the WASM example, as it duplicates the JVM example and only adds
unnecessary complexity

## How Has This Been Tested?
Locally

## Breaking Changes
No

## Types of changes
- [x] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Documentation update

## Checklist
- [x] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [x] My code follows the repository's style guidelines
- [x] New and existing tests pass locally
- [ ] I have added appropriate error handling
- [x] I have added or updated documentation as needed

samples/weather-stdio-server/gradle/libs.versions.toml

@@ -1,10 +1,10 @@
 [versions]
 collections-immutable = "0.4.0"
 coroutines = "1.10.2"
-kotlin = "2.2.20"
-ktor = "3.3.0"
+kotlin = "2.2.21"
+ktor = "3.2.3"
 logging = "7.0.13"
-mcp-kotlin = "0.7.3"
+mcp-kotlin = "0.7.4"
 shadow = "9.2.2"
 slf4j = "2.0.17"
 

samples/weather-stdio-server/src/main/kotlin/io/modelcontextprotocol/sample/server/McpWeatherServer.kt

@@ -7,7 +7,6 @@ import io.ktor.http.ContentType
 import io.ktor.http.contentType
 import io.ktor.http.headers
 import io.ktor.serialization.kotlinx.json.json
-import io.ktor.utils.io.core.Input
 import io.ktor.utils.io.streams.asInput
 import io.modelcontextprotocol.kotlin.sdk.CallToolResult
 import io.modelcontextprotocol.kotlin.sdk.Implementation
@@ -19,7 +18,6 @@ import io.modelcontextprotocol.kotlin.sdk.server.ServerOptions
 import io.modelcontextprotocol.kotlin.sdk.server.StdioServerTransport
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.runBlocking
-import kotlinx.io.Sink
 import kotlinx.io.asSink
 import kotlinx.io.buffered
 import kotlinx.serialization.json.Json