chore(amsat): remove the HTML scraping path superseded by the JSON API

The merged upstream AMSAT implementation fetches status data from AMSAT's JSON
endpoints (getAmSatCatalog / getAmSatReports), so the fork's HTML scraping path
no longer has a caller:

- core/data/.../source/AmSatParser.kt (136 lines): parsed the amsat.org status
  table, deriving state from the page's inline colour codes.
- IRemoteSource.getStatusHtml() plus its RemoteSource implementation and the
  DatabaseRepoTest fake override.

Verified zero references repo-wide before removing, and again afterwards.
Request / CancellationException imports in RemoteSource remain in use by the
other fetchers. compileReleaseKotlin plus core:domain / core:data /
feature:map / feature:roaming unit tests stay green.

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/source/IRemoteSource.kt

@@ -23,9 +23,6 @@ interface IRemoteSource {
     suspend fun getFileStream(uri: String): InputStream?
     suspend fun getNetworkStream(url: String): InputStream?
 
-    /** Fetch AMSAT status page HTML (with UA; null = failure) */
-    suspend fun getStatusHtml(): String?
-
     /** Fetch AMSAT API catalog (JSON string; null on failure) */
     suspend fun getAmSatCatalog(): String?