Revert "[quality] Move `html_coverage_report` to the quality subdir"

This reverts commit 770544091669c0e461f79debafa17998669b4072.

Signed-off-by: Timothy Chen <timothytim@google.com>
diff --git a/BUILD.bazel b/BUILD.bazel
index bd64654..02e3084 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -2,6 +2,7 @@
 # Licensed under the Apache License, Version 2.0, see LICENSE for details.
 # SPDX-License-Identifier: Apache-2.0
 
+load("//rules:quality.bzl", "html_coverage_report")
 load("//rules:cargo.bzl", "cargo_raze")
 load("@rules_rust//rust:defs.bzl", "rust_analyzer")
 
@@ -12,6 +13,10 @@
     "python-requirements.txt",
 ])
 
+html_coverage_report(
+    name = "html_coverage_report",
+)
+
 filegroup(
     name = "cores",
     srcs = [
diff --git a/quality/BUILD.bazel b/quality/BUILD.bazel
index 213ed94..5332559 100644
--- a/quality/BUILD.bazel
+++ b/quality/BUILD.bazel
@@ -4,7 +4,7 @@
 
 load("@com_github_bazelbuild_buildtools//buildifier:def.bzl", "buildifier", "buildifier_test")
 load("@lowrisc_lint//rules:rules.bzl", "licence_test")
-load("//rules:quality.bzl", "clang_format_check", "clang_format_test", "html_coverage_report")
+load("//rules:quality.bzl", "clang_format_check", "clang_format_test")
 
 package(default_visibility = ["//visibility:public"])
 
@@ -124,7 +124,3 @@
     diff_command = "diff -u",
     mode = "diff",
 )
-
-html_coverage_report(
-    name = "html_coverage_report",
-)