Revert "Add a configuration to hamcrest-library build.gradle"

This reverts commit 87e430c688618f0e112641a83c7b2f8a8c24f16e.

Change-Id: Iadbce0bbf79216a3b844bc78213936c6f0b76a38
diff --git a/library/build.gradle b/library/build.gradle
index 3584fb1..54ab15f 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -8,22 +8,6 @@
     }
 }
 
-configurations {
-    ast
-}
-
 dependencies {
     compile project(':hamcrest')
-    ast project(':android-support-test')
-}
-
-task astJar(type: Jar) {
-    from sourceSets.main.output
-    dependsOn classes
-    baseName "hamcrest-library"
-    classifier "ast"
-}
-
-artifacts {
-    ast astJar
 }