Revert "bazel: update to 6.0.0rc1 (envoyproxy#23678)"

This reverts commit 84df237.

Signed-off-by: Ryan Northey <ryan@synca.io>

.bazelrc

@@ -377,7 +377,6 @@ build:windows --define tcmalloc=disabled
 build:windows --define wasm=disabled
 build:windows --define manual_stamp=manual_stamp
 build:windows --cxxopt="/std:c++17"
-build:windows --output_groups=+pdb_file
 
 # TODO(wrowe,sunjayBhatia): Resolve bugs upstream in curl and rules_foreign_cc
 # See issue https://github.com/bazelbuild/rules_foreign_cc/issues/301

.bazelversion

@@ -1 +1 @@
-6.0.0rc1
+6.0.0-pre.20220706.4

bazel/repository_locations.bzl

@@ -1380,19 +1380,6 @@ REPOSITORY_LOCATIONS_SPEC = dict(
         release_date = "2022-03-30",
         cpe = "N/A",
     ),
-    rules_license = dict(
-        project_name = "rules_license",
-        project_desc = "Bazel rules for checking open source licenses",
-        project_url = "https://github.com/bazelbuild/rules_license",
-        version = "0.0.3",
-        sha256 = "00ccc0df21312c127ac4b12880ab0f9a26c1cff99442dc6c5a331750360de3c3",
-        urls = ["https://github.com/bazelbuild/rules_license/releases/download/{version}/rules_license-{version}.tar.gz"],
-        use_category = ["build", "dataplane_core", "controlplane"],
-        release_date = "2022-05-28",
-        cpe = "N/A",
-        license = "Apache-2.0",
-        license_url = "https://github.com/bazelbuild/rules_license/blob/{version}/LICENSE",
-    ),
 )
 
 def _compiled_protoc_deps(locations, versions):