Update "link new device" mobile client button text when linking

_locales/en/messages.json

@@ -1483,8 +1483,8 @@
     "description": "Used in the guidance to help people find the 'link new device' area of their Signal mobile app"
   },
   "icu:linkNewDevice": {
-    "messageformat": "Link New Device",
-    "description": "The menu option shown in Signal iOS to add a new linked device"
+    "messageformat": "Link a New Device",
+    "description": "The menu option shown in Signal mobile clients to add a new linked device"
   },
   "icu:Install__learn-more": {
     "messageformat": "Learn more",
@@ -1507,7 +1507,7 @@
     "description": "Part of the 2nd instruction on the device link screen"
   },
   "icu:Install__instructions__3": {
-    "messageformat": "Tap {plusButton} (Android) or {linkNewDevice} (iPhone)",
+    "messageformat": "Tap {linkNewDevice}",
     "description": "Instructions on the device link screen"
   },
   "icu:Install__qr-failed-load": {

stylesheets/components/InstallScreenQrCodeNotScannedStep.scss

@@ -145,25 +145,6 @@
     // We want the right link color in dark mode. This is a no-op in light mode.
     color: $color-ultramarine;
   }
-
-  &__android-plus {
-    background: $color-gray-25;
-    border-radius: 100%;
-    display: inline-block;
-    padding: 5px;
-    vertical-align: middle;
-
-    &::before {
-      @include color-svg(
-        '../images/icons/v3/plus/plus-compact.svg',
-        $color-white
-      );
-      content: '';
-      display: block;
-      height: 12px;
-      width: 12px;
-    }
-  }
 }
 
 @keyframes module-InstallScreenQrCodeNotScannedStep__slide-in {

ts/components/installScreen/InstallScreenQrCodeNotScannedStep.tsx

@@ -102,12 +102,6 @@ export function InstallScreenQrCodeNotScannedStep({
                 i18n={i18n}
                 id="icu:Install__instructions__3"
                 components={{
-                  plusButton: (
-                    <div
-                      className="module-InstallScreenQrCodeNotScannedStep__android-plus"
-                      aria-label="+"
-                    />
-                  ),
                   linkNewDevice: <strong>{i18n('icu:linkNewDevice')}</strong>,
                 }}
               />