[bazel] Use java_export from rules_jvm_external

This allows us to delete some of our own support classes and use the
upstream versions instead. It is apparent we need to upstream some
other changes from the javadoc generation, but this is a good starting
point.

Author: shs96c

java/buildtools/src/dev/selenium/tools/jar/BUILD.bazel

@@ -12,7 +12,7 @@ java_binary(
         "//visibility:public",
     ],
     deps = [
-        "//java/buildtools/src/dev/selenium/tools/zip",
+        "@rules_jvm_external//private/tools/java/rules/jvm/external/zip",
         "//java/client/src/org/openqa/selenium/io",
     ],
 )

java/buildtools/src/dev/selenium/tools/jar/MergeJars.java

@@ -18,7 +18,7 @@
 package dev.selenium.tools.javadoc;
 
 import org.openqa.selenium.io.TemporaryFilesystem;
-import dev.selenium.tools.zip.StableZipEntry;
+import rules.jvm.external.zip.StableZipEntry;
 
 import javax.tools.DocumentationTool;
 import javax.tools.JavaFileObject;