Stop including a sample-app that does not exist (#4)

`settings.gradle.kts` was seeded from android-for-googlemaps, which has a
sample app; this module does not. Gradle 9.6 refuses to configure a project
whose directory does not exist:

    Configuring project ':sample-app' without an existing directory is not allowed

Drop the include.

Author: wf9a5m75

settings.gradle.kts

@@ -43,11 +43,3 @@ dependencyResolutionManagement {
 
 rootProject.name = "android-for-openmobilemaps"
 
-if (providers
-        .gradleProperty("skipSampleApp")
-        .map(String::toBoolean)
-        .getOrElse(false)
-        .not()
-) {
-    include(":sample-app")
-}