[build] Do not configure unused sbt settings about Scala, Java and Kotlin sources (reported by sbt linter)

Author: vasilmkd

project/Common.scala

@@ -51,13 +51,9 @@ object Common {
   val projectDirectoriesSettings: Seq[Setting[?]] = Seq(
     // production sources
     Compile / sourceDirectory := baseDirectory.value / "src", // we put all source files in <subproject_dir>/src
-    Compile / scalaSource := (Compile / sourceDirectory).value, // all Scala sources are in the same directory
-    Compile / javaSource := (Compile / sourceDirectory).value, // all Java sources are in the same directory
     Compile / unmanagedSourceDirectories := Seq((Compile / sourceDirectory).value),
     // test sources
     Test / sourceDirectory := baseDirectory.value / "test", // we put all test source files in <subproject_dir>/test
-    Test / scalaSource := (Test / sourceDirectory).value, // all Scala test sources are in the same directory
-    Test / javaSource := (Test / sourceDirectory).value, // all Java test sources are in the same directory
     Test / unmanagedSourceDirectories := Seq((Test / sourceDirectory).value),
     //NOTE: this almost duplicates the logic from sbt-idea-plugin (see org.jetbrains.sbtidea.Init)
     //but it uses `:=` instead of `+=` to remove standard resource directories, which intersect with source directories
@@ -128,9 +124,7 @@ object Common {
         // NOTE: keep versions in sync with ultimate/.idea/kotlinc.xml and community/.idea/kotlinc.xml
         kotlinVersion := "1.9.22",
         kotlincJvmTarget := "17",
-        kotlinRuntimeProvided := true,
-        Compile / kotlinSource := (Compile / sourceDirectory).value, // all Kotlin source files are in the same directory as all other sources
-        Test / kotlinSource := (Test / sourceDirectory).value // all Kotlin test source files are in the same directory as all other sources
+        kotlinRuntimeProvided := true
       )
   }