Remove .well-known files from build process (#2830)

These don't get included in the docker images anyhow (due to them being excluded by defautl by https://github.com/actions/upload-artifact#uploading-hidden-files).

We need to inject the right values into our managed deployments elsewhere.

public/.well-known/apple-app-site-association

@@ -1,26 +0,0 @@
-{
-  "applinks": {
-    "details": [
-      {
-        "appIDs": [
-          "7J4U792NQT.io.element.elementx",
-          "7J4U792NQT.io.element.elementx.nightly",
-          "7J4U792NQT.io.element.elementx.pr"
-        ],
-        "components": [
-          {
-            "?": {
-              "no_universal_links": "?*"
-            },
-            "exclude": true,
-            "comment": "Opt out of universal links"
-          },
-          {
-            "/": "/*",
-            "comment": "Matches any URL"
-          }
-        ]
-      }
-    ]
-  }
-}

public/.well-known/assetlinks.json

@@ -1,32 +0,0 @@
-[
-  {
-    "relation": ["delegate_permission/common.handle_all_urls"],
-    "target": {
-      "namespace": "android_app",
-      "package_name": "io.element.android.x.debug",
-      "sha256_cert_fingerprints": [
-        "B0:B0:51:DC:56:5C:81:2F:E1:7F:6F:3E:94:5B:4D:79:04:71:23:AB:0D:A6:12:86:76:9E:B2:94:91:97:13:0E"
-      ]
-    }
-  },
-  {
-    "relation": ["delegate_permission/common.handle_all_urls"],
-    "target": {
-      "namespace": "android_app",
-      "package_name": "io.element.android.x.nightly",
-      "sha256_cert_fingerprints": [
-        "CA:D3:85:16:84:3A:05:CC:EB:00:AB:7B:D3:80:0F:01:BA:8F:E0:4B:38:86:F3:97:D8:F7:9A:1B:C4:54:E4:0F"
-      ]
-    }
-  },
-  {
-    "relation": ["delegate_permission/common.handle_all_urls"],
-    "target": {
-      "namespace": "android_app",
-      "package_name": "io.element.android.x",
-      "sha256_cert_fingerprints": [
-        "C6:DB:9B:9C:8C:BD:D6:5D:16:E8:EC:8C:8B:91:C8:31:B9:EF:C9:5C:BF:98:AE:41:F6:A9:D8:35:15:1A:7E:16"
-      ]
-    }
-  }
-]