Bump checkerframework to 2.2.2 and stop building from source

Fixes: bazelbuild#4709.

This change stops building checker framework from the source and consumes
the artifacts from Central. As the consequence, the sources are removed
from the Bazel tree and we discontinue packaging the sources in Bazel
source artifact.

LGPL sources are still have to be included in embeded_tools archive. The
source jars are included in embedded_tools archive now:

$ unzip -t bazel-genfiles/src/embedded_tools.zip|grep checker_framework
testing: third_party/checker_framework_dataflow/dataflow-2.2.2-sources.jar
testing: third_party/checker_framework_javacutil/javacutil-2.2.2-sources.jar

src/main/tools/jdk.BUILD

@@ -162,12 +162,6 @@ filegroup(
     srcs = ["lib/tools.jar"],
 )
 
-java_import(
-    name = "langtools-neverlink",
-    jars = ["lib/tools.jar"],
-    neverlink = 1,
-)
-
 config_setting(
     name = "windows",
     values = {"cpu": "x64_windows"},

third_party/BUILD

@@ -23,8 +23,6 @@ filegroup(
         "//third_party/java/jdk/javabuilder:srcs",
         "//third_party/java/proguard:srcs",
         "//third_party/javascript/bootstrap:srcs",
-        "//third_party/checker_framework_dataflow:srcs",
-        "//third_party/checker_framework_javacutil:srcs",
         "//third_party/jformatstring:srcs",
         "//third_party/protobuf:srcs",
         "//third_party/py/abseil:srcs",
@@ -385,7 +383,7 @@ filegroup(
         "jcip_annotations/jcip-annotations-1.0-1.jar",
         "jsr305/jsr-305.jar",
         "pcollections/pcollections-2.1.2.jar",
-        "//third_party/checker_framework_dataflow:bootstrap",
+        "//third_party/checker_framework_dataflow",
         "//third_party/jformatstring:bootstrap",
     ],
 )

third_party/checker_framework_dataflow/BUILD

@@ -4,23 +4,16 @@ licenses(["restricted"])  # GNU GPL v2 with Classpath exception
 
 filegroup(
     name = "srcs",
-    srcs = glob(["**"]),
+    srcs = ["dataflow-2.2.2-sources.jar"],
 )
 
-java_library(
+java_import(
     name = "checker_framework_dataflow",
-    srcs = glob(["java/**"]),
-    javacopts = ["-Xep:MissingCasesInEnumSwitch:OFF"],
+    jars = [
+        "dataflow-2.2.2.jar",
+    ],
+    srcjar = "dataflow-2.2.2-sources.jar",
     deps = [
         "//third_party/checker_framework_javacutil",
-        "@local_jdk//:langtools-neverlink",
     ],
 )
-
-load("//tools/build_rules:java_rules_skylark.bzl", "bootstrap_java_library")
-
-bootstrap_java_library(
-    name = "bootstrap",
-    srcs = glob(["java/**"]),
-    deps = ["//third_party/checker_framework_javacutil:bootstrap"],
-)