remove unnecessary file

packages/preset-themes/src/styles/_mixins.scss

@@ -1,162 +0,0 @@
-@use './bootstrap/init' as bs;
-
-@mixin variable-font-size($basesize) {
-  font-size: $basesize * 0.6;
-
-  @include bs.media-breakpoint-only(sm) {
-    font-size: #{$basesize * 0.7};
-  }
-  @include bs.media-breakpoint-only(md) {
-    font-size: #{$basesize * 0.8};
-  }
-  @include bs.media-breakpoint-only(lg) {
-    font-size: #{$basesize * 0.9};
-  }
-  @include bs.media-breakpoint-up(xl) {
-    font-size: $basesize;
-  }
-}
-
-@mixin expand-editor($editor-margin-top) {
-  $header-plus-footer: $editor-margin-top + $grw-editor-navbar-bottom-height;
-
-  $editor-margin: $header-plus-footer //
-    + 25px //   add .btn-open-dropzone height
-    + 30px; //  add .navbar-editor height
-
-  .main {
-    width: 100%;
-    height: calc(100vh - #{$editor-margin-top});
-    margin-top: 0px !important;
-
-    .grw-container-convertible {
-      max-width: unset;
-      padding: 0;
-      margin: 0;
-    }
-
-    &,
-    .content-main,
-    .tab-content {
-      display: flex;
-      flex: 1;
-      flex-direction: column;
-
-      .tab-pane {
-        height: calc(100vh - #{$header-plus-footer});
-        min-height: calc(100vh - #{$header-plus-footer}); // for IE11
-      }
-
-      #page-editor {
-        // right(preview)
-        &,
-        & > .row,
-        .page-editor-preview-container,
-        .page-editor-preview-body {
-          height: calc(100vh - #{$header-plus-footer});
-          min-height: calc(100vh - #{$header-plus-footer}); // for IE11
-        }
-
-        // left(editor)
-        .page-editor-editor-container {
-          height: calc(100vh - #{$header-plus-footer});
-          min-height: calc(100vh - #{$header-plus-footer}); // for IE11
-
-          .react-codemirror2,
-          .CodeMirror,
-          .CodeMirror-scroll,
-          .textarea-editor {
-            height: calc(100vh - #{$editor-margin});
-          }
-        }
-      }
-
-      #page-editor-with-hackmd {
-        &,
-        .hackmd-preinit,
-        .hackmd-error,
-        #iframe-hackmd-container > iframe {
-          width: 100%;
-          height: calc(100vh - #{$header-plus-footer});
-          min-height: calc(100vh - #{$header-plus-footer}); // for IE11
-        }
-      }
-    }
-  }
-}
-
-@mixin apply-navigation-transition() {
-  transition-timing-function: cubic-bezier(0.25, 1, 0.5, 1);
-  transition-duration: 300ms;
-}
-
-@mixin border-vertical($beforeOrAfter, $borderLength, $zIndex: initial, $isBtnGroup: false) {
-  position: relative;
-  @if $isBtnGroup {
-    &:not(:first-child) {
-      margin-left: 0;
-      border-left: none;
-    }
-    &:not(:last-child) {
-      border-right: none;
-    }
-  }
-  &:not(:first-child) {
-    &::#{$beforeOrAfter} {
-      position: absolute;
-      top: calc((100% - #{$borderLength}) / 2);
-      left: 0;
-      z-index: $zIndex;
-      width: 100%;
-      height: $borderLength;
-      margin-left: -0.5px;
-      content: '';
-      border-left: 1px solid transparent;
-      transition: border-color 0.15s ease-in-out;
-    }
-  }
-}
-
-@keyframes fadeout {
-  100% {
-    opacity: 0;
-  }
-}
-
-@mixin blink-bgcolor($bgcolor) {
-  position: relative;
-  z-index: 1;
-
-  &::after {
-    position: absolute;
-    top: 15%;
-    left: 0;
-    z-index: -1;
-    width: 100%;
-    height: 70%;
-    content: '';
-    background-color: $bgcolor;
-    border-radius: 2px;
-    animation: fadeout 1s ease-in 1.5s forwards;
-  }
-}
-
-@mixin overlay-processing-style($additionalSelector, $contentFontSize: inherit, $contentPadding: inherit) {
-  .overlay.#{$additionalSelector} {
-    background: rgba(255, 255, 255, 0.5);
-    .overlay-content {
-      padding: $contentPadding;
-      font-size: $contentFontSize;
-      color: bs.$gray-700;
-      background: rgba(200, 200, 200, 0.5);
-    }
-  }
-}
-
-@mixin insertSimpleLineIcons($code) {
-  &:before {
-    margin-right: 0.2em;
-    font-family: 'simple-line-icons';
-    content: $code;
-  }
-}