Upgrade autocxx

This gets rid of most of our local changes.

Change-Id: I8a0aa1149e6e4c0c5c21952afd39915ec2a8bbfa
Signed-off-by: Brian Silverman <bsilver16384@gmail.com>
diff --git a/third_party/cargo/remote/BUILD.itertools-0.10.3.bazel b/third_party/cargo/remote/BUILD.itertools-0.10.3.bazel
index 46ee0f9..d919774 100644
--- a/third_party/cargo/remote/BUILD.itertools-0.10.3.bazel
+++ b/third_party/cargo/remote/BUILD.itertools-0.10.3.bazel
@@ -71,7 +71,7 @@
     version = "0.10.3",
     # buildifier: leave-alone
     deps = [
-        "@raze__either__1_6_1//:either",
+        "@raze__either__1_7_0//:either",
     ],
 )