Bug 1721229 - Remove the WebPayments UI code from the tree. r=MattN,d…

…esktop-theme-reviewers,edenchuang,dao

* Remove the contents of the browser/components/payments directory
* Excepting the nsIPaymentUIService implementation and its component registration - to allow the /feature-policy/payment-allowed-by-feature-policy* tests to continue to run and pass
* Update docs index to remove the web payments UI source docs
* Remove residual rules from browser CSS
* Remove references from the static analysis tests

Differential Revision: https://phabricator.services.mozilla.com/D127329

browser/base/content/test/static/browser_all_files_referenced.js

@@ -22,9 +22,6 @@ var gExceptionPaths = [
   "resource://gre/modules/commonjs/",
   "resource://gre/defaults/pref/",
 
-  // These resources are referenced using relative paths from html files.
-  "resource://payments/",
-
   // These chrome resources are referenced using relative paths from JS files.
   "chrome://global/content/certviewer/components/",
 

browser/base/content/test/static/browser_parsable_script.js

@@ -13,9 +13,6 @@ const kWhitelist = new Set([
 ]);
 
 const kESModuleList = new Set([
-  /browser\/res\/payments\/(components|containers|mixins)\/.*\.js$/,
-  /browser\/res\/payments\/paymentRequest\.js$/,
-  /browser\/res\/payments\/PaymentsStore\.js$/,
   /browser\/aboutlogins\/components\/.*\.js$/,
   /browser\/aboutlogins\/.*\.js$/,
   /browser\/protections.js$/,

browser/components/moz.build

@@ -62,11 +62,6 @@ DIRS += [
 
 DIRS += ["build"]
 
-if CONFIG["NIGHTLY_BUILD"]:
-    DIRS += [
-        "payments",
-    ]
-
 if CONFIG["MOZ_WIDGET_TOOLKIT"] == "cocoa":
     DIRS += ["touchbar"]
 elif CONFIG["MOZ_WIDGET_TOOLKIT"] == "windows":