Remove duplicate API sample jar.

Change-Id: I43e246b14158b95cf455284fad9efbf57602f476
diff --git a/build.gradle b/build.gradle
index 6050eda..d4a1c75 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1050,12 +1050,6 @@
     destinationDir file('build/libs')
 }
 
-task buildD8ApiUsageSample(type: Jar) {
-    from sourceSets.apiUsageSample.output
-    baseName 'd8_api_usage_sample'
-    destinationDir file('tests')
-}
-
 task buildR8ApiUsageSample(type: Jar) {
     from sourceSets.apiUsageSample.output
     baseName 'r8_api_usage_sample'
@@ -1063,7 +1057,6 @@
 }
 
 task buildApiSampleJars {
-    dependsOn buildD8ApiUsageSample
     dependsOn buildR8ApiUsageSample
 }
 
diff --git a/src/test/java/com/android/tools/r8/D8ApiBinaryCompatibilityTests.java b/src/test/java/com/android/tools/r8/D8ApiBinaryCompatibilityTests.java
index 9c3d9c4..846bc6b 100644
--- a/src/test/java/com/android/tools/r8/D8ApiBinaryCompatibilityTests.java
+++ b/src/test/java/com/android/tools/r8/D8ApiBinaryCompatibilityTests.java
@@ -37,7 +37,7 @@
 
   @Test
   public void testCompatibility() throws IOException {
-    Path jar = Paths.get("tests", "d8_api_usage_sample.jar");
+    Path jar = ToolHelper.API_SAMPLE_JAR;
     String main = "com.android.tools.apiusagesample.D8ApiUsageSample";
     int minApiLevel = AndroidApiLevel.K.getLevel();
 
diff --git a/src/test/java/com/android/tools/r8/R8ApiBinaryCompatibilityTests.java b/src/test/java/com/android/tools/r8/R8ApiBinaryCompatibilityTests.java
index b9676d5..954d773 100644
--- a/src/test/java/com/android/tools/r8/R8ApiBinaryCompatibilityTests.java
+++ b/src/test/java/com/android/tools/r8/R8ApiBinaryCompatibilityTests.java
@@ -25,7 +25,7 @@
 @RunWith(Parameterized.class)
 public class R8ApiBinaryCompatibilityTests extends TestBase {
 
-  static final Path JAR = Paths.get("tests", "r8_api_usage_sample.jar");
+  static final Path JAR = ToolHelper.API_SAMPLE_JAR;
   static final String MAIN = "com.android.tools.apiusagesample.R8ApiUsageSample";
   static final AndroidApiLevel MIN_API = AndroidApiLevel.K;
 
diff --git a/src/test/java/com/android/tools/r8/ToolHelper.java b/src/test/java/com/android/tools/r8/ToolHelper.java
index 3d00718..9ad7a70 100644
--- a/src/test/java/com/android/tools/r8/ToolHelper.java
+++ b/src/test/java/com/android/tools/r8/ToolHelper.java
@@ -120,6 +120,8 @@
   public static final String JAVA_CLASSES_DIR = BUILD_DIR + "classes/java/";
   public static final String JDK_11_TESTS_CLASSES_DIR = JAVA_CLASSES_DIR + "jdk11Tests/";
 
+  public static final Path API_SAMPLE_JAR = Paths.get("tests", "r8_api_usage_sample.jar");
+
   public static final String LINE_SEPARATOR = StringUtils.LINE_SEPARATOR;
   public static final String CLASSPATH_SEPARATOR = File.pathSeparator;
 
diff --git a/tests/d8_api_usage_sample.jar b/tests/d8_api_usage_sample.jar
deleted file mode 100644
index 07dd629..0000000
--- a/tests/d8_api_usage_sample.jar
+++ /dev/null
Binary files differ