Remove obsolete strings file as they are not required.

ios/chrome/browser/BUILD.gn

Index: ios/chrome/browser/BUILD.gn
diff --git a/ios/chrome/browser/BUILD.gn b/ios/chrome/browser/BUILD.gn
index ea0741c6d889b926efb8c064b316645fee00abe3..11d231910c8388b980d042a2822bf6db2eb56d9d 100644
--- a/ios/chrome/browser/BUILD.gn
+++ b/ios/chrome/browser/BUILD.gn
@@ -74,6 +74,7 @@ source_set("browser") {
     "xcallback_parameters.mm",
   ]
   deps = [
+    ":settings_resources",
     "//base",
     "//components/autofill/core/browser",
     "//components/autofill/core/common",
@@ -227,24 +228,6 @@ bundle_data("settings_resources") {
   outputs = [
     "{{bundle_resources_dir}}/Settings.bundle/{{source_file_part}}",
   ]
-  deps = [
-    ":settings_resources_experimental_strings",
-    ":settings_resources_root_strings",
-  ]
-}
-
-bundle_data_strings("settings_resources_experimental_strings") {
-  visibility = [ ":settings_resources" ]
-  source = "resources/Settings.bundle/en.lproj/Experimental.strings"
-  output =
-      "{{bundle_resources_dir}}/Settings.bundle/en.lproj/{{source_file_part}}"
-}
-
-bundle_data_strings("settings_resources_root_strings") {
-  visibility = [ ":settings_resources" ]
-  source = "resources/Settings.bundle/en.lproj/Root.strings"
-  output =
-      "{{bundle_resources_dir}}/Settings.bundle/en.lproj/{{source_file_part}}"
 }
 
 source_set("unit_tests") {