Remove mirror option because it's nearly useless now

Author: jurplel

README.md

@@ -80,13 +80,6 @@ Possible values: `qtcharts`, `qtdatavis3d`, `qtpurchasing`, `qtvirtualkeyboard`,
 
 Default: none
 
-### `mirror`
-Forces a different Qt mirror in case there is a problem with the default.
-
-If you have problems, you can try: `http://mirrors.ocf.berkeley.edu/qt/`
-
-Default: none
-
 ### `cached`
 If it is set to `true`, then Qt won't be downloaded, but the environment variables will be set, and essential build tools will be installed.
 

action.yml

@@ -22,8 +22,6 @@ inputs:
     default: 'true'
   modules:
     description: 'Additional Qt modules to install'
-  mirror:
-    description: 'Force a Qt mirror in case the default is not working'
   cached:
     description: "Whether or not to actually download Qt"
     default: 'false'

src/main.ts

@@ -43,7 +43,6 @@ async function run() {
         let host = core.getInput("host");
         const target = core.getInput("target");
         let arch = core.getInput("arch");
-        const mirror = core.getInput("mirror");
         const extra = core.getInput("extra");
         const modules = core.getInput("modules");
 
@@ -97,10 +96,6 @@ async function run() {
 
         let extraArgs = ["-O", `${dir}`]
 
-        if (mirror) {
-          extraArgs.push("-b");
-          extraArgs.push(mirror);
-        }
         if (extra) {
           extra.split(" ").forEach(function(string) {
             extraArgs.push(string);