Remove old //cuttlefish/common/libs/posix:strerror implementation

Bug: b/471277616

Author: Databean

base/cvd/cuttlefish/common/libs/posix/BUILD.bazel

@@ -4,14 +4,6 @@ package(
     default_visibility = ["//:android_cuttlefish"],
 )
 
-cf_cc_library(
-    name = "strerror",
-    hdrs = ["strerror.h"],
-    deps = [
-        "//cuttlefish/posix:strerror",
-    ],
-)
-
 cf_cc_library(
     name = "symlink",
     srcs = ["symlink.cc"],