[bug] Remove old mac-bar styling (#1246)

With the account switching work a header was added to the desktop app that new acts as a home for the mac window controls.
Previously we needed a special home for these controls, but since moving them we are not just creating empty space.
Removing this class and the divs that use it corrects the behavior.

src/app/send/send.component.html

@@ -1,6 +1,5 @@
 <div id="sends" class="vault">
   <div class="groupings">
-    <div class="mac-bar"></div>
     <div class="content">
       <div class="inner-content">
         <h2 class="sr-only">{{ "filters" | i18n }}</h2>

src/app/vault/groupings.component.html

@@ -1,4 +1,3 @@
-<div class="mac-bar"></div>
 <div class="content">
   <div class="inner-content">
     <h2 class="sr-only">{{ "filters" | i18n }}</h2>

src/scss/environment.scss

@@ -59,11 +59,6 @@ html.os_macos {
     }
   }
 
-  .vault .mac-bar {
-    height: 48px;
-    -webkit-app-region: drag;
-  }
-
   .vault > .groupings > .content > .inner-content {
     padding-top: 0;
   }