chore: remove unused pugixml dependency (#100)

Author: scotthart

bazel/development2.bzl

@@ -14,9 +14,6 @@
 
 """Load dependencies needed for google-cloud-cpp development / Phase 2."""
 
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-load("@bazel_tools//tools/build_defs/repo:utils.bzl", "maybe")
-
 def gl_cpp_development2(name = None):
     """Loads dependencies needed to develop the google-cloud-cpp libraries.
 
@@ -27,16 +24,3 @@ def gl_cpp_development2(name = None):
         name: Unused. It is conventional to provide a `name` argument to all
             workspace functions.
     """
-
-    # An XML parser and generator, this is only used in //docfx.
-    # This is an internal tool used to generate the reference documentation.
-    maybe(
-        http_archive,
-        name = "com_github_zeux_pugixml",
-        urls = [
-            "https://github.com/zeux/pugixml/archive/v1.14.tar.gz",
-        ],
-        sha256 = "610f98375424b5614754a6f34a491adbddaaec074e9044577d965160ec103d2e",
-        strip_prefix = "pugixml-1.14",
-        build_file = Label("//bazel:pugixml.BUILD"),
-    )

bazel/pugixml.BUILD

@@ -39,9 +39,6 @@ RUN dnf makecache && dnf install -y java-latest-openjdk
 RUN dnf makecache && dnf install -y "dnf-command(debuginfo-install)"
 RUN dnf makecache && dnf debuginfo-install -y libstdc++
 
-# These are used by the docfx tool.
-RUN dnf makecache && dnf install -y pugixml-devel yaml-cpp-devel
-
 # Sets root's password to the empty string to enable users to get a root shell
 # inside the container with `su -` and no password. Sudo would not work because
 # we run these containers as the invoking user's uid, which does not exist in

ci/cloudbuild/dockerfiles/fedora-latest-cmake-gcc.Dockerfile

@@ -39,9 +39,6 @@ RUN dnf makecache && dnf install -y java-latest-openjdk
 RUN dnf makecache && dnf install -y "dnf-command(debuginfo-install)"
 RUN dnf makecache && dnf debuginfo-install -y libstdc++
 
-# These are used by the docfx tool.
-RUN dnf makecache && dnf install -y pugixml-devel yaml-cpp-devel
-
 # Sets root's password to the empty string to enable users to get a root shell
 # inside the container with `su -` and no password. Sudo would not work because
 # we run these containers as the invoking user's uid, which does not exist in