diff --git a/lib/rails_ext/active_storage_blob_previewable.rb b/lib/rails_ext/active_storage_blob_previewable.rb
deleted file mode 100644
index c3ceb31ae..000000000
--- a/lib/rails_ext/active_storage_blob_previewable.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-#
-#  see https://app.fizzy.do/5986089/collections/7/cards/1302
-#
-#  Large previewable uploads may take longer than the "pin reads" interval. So we pick a small-ish
-#  number and turn off previews for anything larger, at least until we can come up with a permanent
-#  solution.
-#
-module ActiveStorageBlobPreviewable
-  MAX_PREVIEWABLE_SIZE = 16.megabytes # this is pretty arbitrary, feel free to adjust
-
-  def previewable?
-    super && self.byte_size <= MAX_PREVIEWABLE_SIZE
-  end
-end
-
-ActiveSupport.on_load :active_storage_blob do
-  prepend ::ActiveStorageBlobPreviewable
-end
diff --git a/test/lib/rails_ext/active_storage_blob_previewable_test.rb b/test/lib/rails_ext/active_storage_blob_previewable_test.rb
deleted file mode 100644
index 290cc3cf9..000000000
--- a/test/lib/rails_ext/active_storage_blob_previewable_test.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-require "test_helper"
-
-class ActiveStorageBlobPreviewableTest < ActiveSupport::TestCase
-  test "small files are previewable" do
-    blob = ActiveStorage::Blob.new(filename: "test.mp4", content_type: "video/mp4", byte_size: 1024 * 1024, key: "test", checksum: "abc")
-    assert blob.previewable?
-  end
-
-  test "large files are not previewable" do
-    blob = ActiveStorage::Blob.new(filename: "test.mp4", content_type: "video/mp4", byte_size: ActiveStorageBlobPreviewable::MAX_PREVIEWABLE_SIZE + 1, key: "test", checksum: "abc")
-    assert_not blob.previewable?
-  end
-end