Exclude wrap_memcpy.cc from BUILD.gn unconditionally

templates/BUILD.gn.template

 %YAML 1.2
 --- |
   # GRPC Chromium BUILD.gn file.
   # This file has been automatically generated from a template file.
   # Please look at the templates directory instead.
   # This file can be regenerated from the template by running
   # tools/buildgen/generate_projects.sh
   if (is_android) {
     import("//build/config/android/config.gni")
     import("//build/config/android/rules.gni")
@@ skipping 126 matching lines @@
       "${hdr}",
   % endfor
   % for hdr in hdrs:
       "${hdr}",
   % endfor
   % for src in srcs:
       "${src}",
   % endfor
     ]
   % if contains_wrap_memcpy(srcs):
-    if (is_android) {
-      # gRPC memcpy wrapping logic isn't Android-friendly.
-      # See https://crbug.com/661171
-      sources -= [
+    # gRPC memcpy wrapping logic isn't useful here.
+    # See https://crbug.com/661171
+    sources -= [
   % for src in get_wrap_memcpy(srcs):
-        "${src}",
+      "${src}",
   % endfor
-      ]
-    }
+    ]
   % endif
     deps = [
   % for dep in get_deps(lib):
       "${dep}",
   % endfor
     ]
     configs -= [ "//build/config/compiler:chromium_code" ]
     configs += [
       "//build/config/compiler:no_chromium_code",
   % for config in get_extra_configs(lib):
@@ skipping 21 matching lines @@
     configs -= [ "//build/config/compiler:chromium_code" ]
     configs += [
       "//build/config/compiler:no_chromium_code",
   % for config in get_extra_configs(tgt):
       "${config}",
   % endfor
     ]
     public_configs = [ ":grpc_config" ]
   }
   </%def>