build scripts: disable Gradle Daemon

Build scripts aren't started often so it makes no sense to use the daemon in them. Disabling the daemon explicitly suppresses annoying "please consider using the Gradle Daemon" message in build outputs.

platform/build-scripts/groovy/org/jetbrains/intellij/build/GradleRunner.groovy

@@ -68,6 +68,7 @@ class GradleRunner {
     command.add("${projectDir.absolutePath}/$gradleScript".toString())
     command.addAll(tasks)
     command.add('--stacktrace')
+    command.add('--no-daemon')
     def process = new ProcessBuilder(command).directory(projectDir).start()
     process.consumeProcessOutputStream((OutputStream)System.out)
     process.consumeProcessErrorStream((OutputStream)System.err)