removed unused constants.

Test: Existing
Bug: N/A
Change-Id: Ib399703e78d11b5365f473a6e921186791e55bfa
diff --git a/build-system/builder/src/main/java/com/android/builder/core/ComponentType.kt b/build-system/builder/src/main/java/com/android/builder/core/ComponentType.kt
index 23910a5..5ab2e45 100644
--- a/build-system/builder/src/main/java/com/android/builder/core/ComponentType.kt
+++ b/build-system/builder/src/main/java/com/android/builder/core/ComponentType.kt
@@ -148,9 +148,6 @@
         const val UNIT_TEST_SUFFIX = "UnitTest"
         const val TEST_FIXTURES_PREFIX = "testFixtures"
         const val TEST_FIXTURES_SUFFIX = "TestFixtures"
-        const val PREVIEW_SCREENSHOT_PREFIX = "previewScreenshot"
-        const val PREVIEW_SCREENSHOT_UPDATE_PREFIX = "previewScreenshotUpdate"
-        const val PREVIEW_SCREENSHOT_RENDER_PREFIX = "previewScreenshotRender"
         const val SCREENSHOT_TEST_PREFIX = "screenshotTest"
         const val SCREENSHOT_TEST_SUFFIX = "ScreenshotTest"