theme uninstall add

resources/custom/scss/bootstrap/mixins/_deprecate.scss

@@ -1,10 +0,0 @@
-// Deprecate mixin
-//
-// This mixin can be used to deprecate mixins or functions.
-// `$enable-deprecation-messages` is a global variable, `$ignore-warning` is a variable that can be passed to
-// some deprecated mixins to suppress the warning (for example if the mixin is still be used in the current version of Bootstrap)
-@mixin deprecate($name, $deprecate-version, $remove-version, $ignore-warning: false) {
-  @if ($enable-deprecation-messages != false and $ignore-warning != true) {
-    @warn "#{$name} has been deprecated as of #{$deprecate-version}. It will be removed entirely in #{$remove-version}.";
-  }
-}