Bazel: Simplify java 11 toolchain definition

Per default the attributes of default_java_toolchain macro is set to
correct values, so that we don't need to specify them.

Moreover, a new Bazel release could set new values, so that own values
would override the default values and thus revert them. This is the case
with default_java_toolchain.misc attribute. During Error Prone upgrade,
a new option was added -XepOpt:ReturnValueIgnored:ObjectMethods=true,
but overridden in our own impementation, see: [1],[2].

This is a preparation change to update Bazel version to 5.x release.

[1] https://github.com/bazelbuild/bazel/issues/14587
[2] https://github.com/bazelbuild/bazel/issues/14589

Change-Id: Ib7986555c3dabacc17db11cc7787b526fb31012b

tools/BUILD

diff --git a/tools/BUILD b/tools/BUILD
index 04375f9..08c4829 100644
--- a/tools/BUILD
+++ b/tools/BUILD
@@ -6,51 +6,13 @@
 
 exports_files(["nongoogle.bzl"])
 
-JDK11_JVM_OPTS = select({
-    "@bazel_tools//src/conditions:openbsd": ["-Xbootclasspath/p:$(location @bazel_tools//tools/jdk:javac_jar)"],
-    "//conditions:default": [
-        "--add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED",
-        "--add-exports=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED",
-        "--add-exports=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED",
-        "--add-exports=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED",
-        "--add-exports=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED",
-        "--add-exports=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED",
-        "--add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED",
-        "--add-opens=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED",
-        "--patch-module=java.compiler=$(location @bazel_tools//tools/jdk:java_compiler_jar)",
-        "--patch-module=jdk.compiler=$(location @bazel_tools//tools/jdk:jdk_compiler_jar)",
-        "--add-opens=java.base/java.nio=ALL-UNNAMED",
-        "--add-opens=java.base/java.lang=ALL-UNNAMED",
-    ],
-})
-
 default_java_toolchain(
     name = "error_prone_warnings_toolchain_java11",
-    bootclasspath = ["@bazel_tools//tools/jdk:platformclasspath.jar"],
-    forcibly_disable_header_compilation = False,
-    genclass = ["@bazel_tools//tools/jdk:genclass"],
-    header_compiler = ["@bazel_tools//tools/jdk:turbine"],
-    header_compiler_direct = ["@bazel_tools//tools/jdk:turbine_direct"],
-    ijar = ["@bazel_tools//tools/jdk:ijar"],
-    javabuilder = ["@bazel_tools//tools/jdk:javabuilder"],
-    javac_supports_workers = True,
-    jvm_opts = JDK11_JVM_OPTS,
-    misc = [
-        "-XDskipDuplicateBridges=true",
-        "-g",
-        "-parameters",
-    ],
     package_configuration = [
         ":error_prone",
     ],
-    singlejar = ["@bazel_tools//tools/jdk:singlejar"],
     source_version = "11",
     target_version = "11",
-    tools = [
-        "@bazel_tools//tools/jdk:java_compiler_jar",
-        "@bazel_tools//tools/jdk:javac_jar",
-        "@bazel_tools//tools/jdk:jdk_compiler_jar",
-    ],
     visibility = ["//visibility:public"],
 )