smalltown -> metropolis

This pass removes all mentions of Smalltown, both from code and comments,
and replaces them with appropriate new terminology.

Test Plan: Refactor, covered by CI.

X-Origin-Diff: phab/D674
GitOrigin-RevId: 04a94d44ef07d46f7821530da5614daefe16d7ea
diff --git a/third_party/linux/BUILD.bazel b/third_party/linux/BUILD.bazel
index 48f811b..2a52fe3 100644
--- a/third_party/linux/BUILD.bazel
+++ b/third_party/linux/BUILD.bazel
@@ -2,7 +2,7 @@
     name = "bzImage",
     srcs = [
         "@linux//:all",
-        "linux-smalltown.config",
+        "linux-metropolis.config",
     ],
     outs = [
         "bzImage",
@@ -12,7 +12,7 @@
 
     mkdir $$DIR/.bin
 
-    cp $(location linux-smalltown.config) $$DIR/.config
+    cp $(location linux-metropolis.config) $$DIR/.config
 
     (cd $$DIR && make -j $$(nproc) >/dev/null)
 
@@ -23,6 +23,6 @@
 
 filegroup(
     name = "kernel-config",
-    srcs = ["linux-smalltown.config"],
+    srcs = ["linux-metropolis.config"],
     visibility = ["//visibility:public"],
 )