[Hybrid build] apksig is built with bazel

Bug: 143864616
Test: GmavenZipTest

Change-Id: Icbfd3b72e06ea566ab3d76443bb9e676c349f414
diff --git a/BUILD b/BUILD
index 5322f4d..e5f0b80 100644
--- a/BUILD
+++ b/BUILD
@@ -20,8 +20,11 @@
 coverage_java_library(
     name = "apksig-all",
     srcs = glob(["src/main/java/**/*.java"]),
-    resource_strip_prefix = "tools/apksig",
-    resources = ["LICENSE"],
+    visibility = [":apksig-private-api-clients"],
+)
+
+exports_files(
+    ["LICENSE"],
     visibility = [":apksig-private-api-clients"],
 )
 
@@ -68,16 +71,3 @@
         "@maven//:junit.junit",
     ],
 )
-
-filegroup(
-    name = "agp_gradle_build_files",
-    srcs = glob([
-        "src/main/**/*.java",
-        "src/main/**/*.kt",
-        "src/main/resources/**",
-    ]) + [
-        "android_plugin_for_gradle.gradle",
-        "LICENSE",
-    ],
-    visibility = ["//tools/base/build-system:__pkg__"],
-)
diff --git a/android_plugin_for_gradle.gradle b/android_plugin_for_gradle.gradle
deleted file mode 100644
index 13cec30..0000000
--- a/android_plugin_for_gradle.gradle
+++ /dev/null
@@ -1,16 +0,0 @@
-// Gradle project used when building the Android Plugin for Gradle
-plugins {
-    id 'com.android.tools.java-library'
-    id 'com.android.tools.publish'
-}
-
-dependencies {
-    testImplementation libs.junit
-}
-
-group = "com.android.tools.build"
-archivesBaseName = 'apksig'
-version = rootProject.ext.buildVersion
-
-project.ext.pomName = 'Android Tools apksig library'
-project.ext.pomDesc = 'Library for signing APKs and for checking that APK signatures verify on Android'