Revert "composer update bootstrap to version 5.1.1"

This reverts commit 89e4006b2d84d398e34d407a019854823b1dd37d.

1 files changed, 0 insertions, 51 deletions

diff --git a/vendor/twbs/bootstrap/scss/_placeholders.scss b/vendor/twbs/bootstrap/scss/_placeholders.scss
deleted file mode 100644
index 2f647cc9b..000000000
--- a/vendor/twbs/bootstrap/scss/_placeholders.scss
+++ /dev/null
@@ -1,51 +0,0 @@
-.placeholder {
-  display: inline-block;
-  min-height: 1em;
-  vertical-align: middle;
-  cursor: wait;
-  background-color: currentColor;
-  opacity: $placeholder-opacity-max;
-
-  &.btn::before {
-    display: inline-block;
-    content: "";
-  }
-}
-
-// Sizing
-.placeholder-xs {
-  min-height: .6em;
-}
-
-.placeholder-sm {
-  min-height: .8em;
-}
-
-.placeholder-lg {
-  min-height: 1.2em;
-}
-
-// Animation
-.placeholder-glow {
-  .placeholder {
-    animation: placeholder-glow 2s ease-in-out infinite;
-  }
-}
-
-@keyframes placeholder-glow {
-  50% {
-    opacity: $placeholder-opacity-min;
-  }
-}
-
-.placeholder-wave {
-  mask-image: linear-gradient(130deg, $black 55%, rgba(0, 0, 0, (1 - $placeholder-opacity-min)) 75%, $black 95%);
-  mask-size: 200% 100%;
-  animation: placeholder-wave 2s linear infinite;
-}
-
-@keyframes placeholder-wave {
-  100% {
-    mask-position: -200% 0%;
-  }
-}