Remove launcher options to java_binary from open source release

This is a follow-up to []
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=119897863

java/com/google/domain/registry/module/backend/BUILD

@@ -46,7 +46,6 @@ java_library(
 java_binary(
     name = "backend_jar",
     create_executable = 0,
-    launcher = "//third_party/java/jdk:jdk_launcher",
     runtime_deps = [
         ":backend",
         "//java/com/google/domain/registry/monitoring/whitebox",  # MetricsTaskServlet

java/com/google/domain/registry/module/frontend/BUILD

@@ -34,7 +34,6 @@ java_library(
 java_binary(
     name = "frontend_jar",
     create_executable = 0,
-    launcher = "//third_party/java/jdk:jdk_launcher",
     runtime_deps = [
         ":frontend",
         "//java/com/google/domain/registry/ui/server/api",  # CheckApiServlet

java/com/google/domain/registry/module/tools/BUILD

@@ -36,7 +36,6 @@ java_library(
 java_binary(
     name = "tools_jar",
     create_executable = 0,
-    launcher = "//third_party/java/jdk:jdk_launcher",
     runtime_deps = [
         ":tools",
     ],