Roll expat for bazel

This is the same basic roll that was done previously [0], but for bazel.

[0] https://skia.googlesource.com/skia.git/+show/5443a067413cd32a4ceea694d37297c0ed7e26d2

Change-Id: I4e0c4bda54812960551c04054b3652b1172d1aff
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/609597
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Ravi Mistry <rmistry@google.com>
diff --git a/bazel/deps.bzl b/bazel/deps.bzl
index 9964e93..51518fc 100644
--- a/bazel/deps.bzl
+++ b/bazel/deps.bzl
@@ -42,7 +42,7 @@
     new_git_repository(
         name = "expat",
         build_file = "@//bazel/external/expat:BUILD.bazel",
-        commit = "a28238bdeebc087071777001245df1876a11f5ee",
+        commit = "441f98d02deafd9b090aea568282b28f66a50e36",
         remote = "https://chromium.googlesource.com/external/github.com/libexpat/libexpat.git",
     )
 
diff --git a/bazel/external/expat/BUILD.bazel b/bazel/external/expat/BUILD.bazel
index 8fb32ea..66ff979 100644
--- a/bazel/external/expat/BUILD.bazel
+++ b/bazel/external/expat/BUILD.bazel
@@ -54,7 +54,6 @@
     srcs = EXPAT_SRCS,
     hdrs = EXPAT_HDRS,
     defines = [
-        "HAVE_MEMMOVE",
         "XML_DEV_URANDOM",
         "XML_STATIC",
     ],