diff --git a/docs/reference/models/transform.md b/docs/reference/models/transform.md
index 832574717..49d8b4576 100644
--- a/docs/reference/models/transform.md
+++ b/docs/reference/models/transform.md
@@ -57,7 +57,6 @@ Transform methods can either operate on the [`Document`](./document.md), the [`S
   - [`setMarkByKey`](#setmarkbykey)
   - [`setNodeByKey`](#setnodebykey)
   - [`splitNodeByKey`](#splitnodebykey)
-  - [`unwrapInlineByKey`](#unwrapinlinebykey)
 - [Document Transforms](#document-transforms)
   - [`deleteAtRange`](#deleteatrange)
   - [`deleteBackwardAtRange`](#deletebackwardatrange)
@@ -318,12 +317,6 @@ Set a dictionary of `properties` on a [`Node`](./node.md) by its `key`. For conv
 
 Split a node by its `key` at an `offset`.
 
-### `unwrapInlineByKey`
-`unwrapInlineByKey(key: String, properties: Object) => Transform` <br/>
-`unwrapInlineByKey(key: String, type: String) => Transform`
-
-Unwrap all inner content of an [`Inline`](./inline.md) node that match `properties`. For convenience, you can pass a `type` string or `properties` object.
-
 ## Document Transforms
 
 ### `deleteBackwardAtRange`
diff --git a/src/transforms/by-key.js b/src/transforms/by-key.js
index 20895bdba..fbed4b86c 100644
--- a/src/transforms/by-key.js
+++ b/src/transforms/by-key.js
@@ -241,21 +241,3 @@ export function splitNodeByKey(transform, key, offset) {
 
   return transform.splitNodeOperation(path, offset)
 }
-
-/**
- * Unwrap content from an inline parent with `properties`.
- *
- * @param {Transform} transform
- * @param {String} key
- * @param {Object or String} properties
- * @return {Transform}
- */
-
-export function unwrapInlineByKey(transform, key, properties) {
-  const { state } = transform
-  const { document, selection } = state
-  const node = document.assertDescendant(key)
-  const range = selection.moveToRangeOf(node)
-
-  return transform.unwrapInline(range, properties)
-}
diff --git a/test/transforms/fixtures/by-key/unwrap-inline/single-block/index.js b/test/transforms/fixtures/by-key/unwrap-inline/single-block/index.js
deleted file mode 100644
index 150a8fcf8..000000000
--- a/test/transforms/fixtures/by-key/unwrap-inline/single-block/index.js
+++ /dev/null
@@ -1,14 +0,0 @@
-
-import assert from 'assert'
-
-export default function (state) {
-  const { document, selection } = state
-  const inline = document.assertPath([0, 1])
-
-  const next = state
-    .transform()
-    .unwrapInlineByKey(inline.key, 'hashtag')
-    .apply()
-
-  return next
-}
diff --git a/test/transforms/fixtures/by-key/unwrap-inline/single-block/input.yaml b/test/transforms/fixtures/by-key/unwrap-inline/single-block/input.yaml
deleted file mode 100644
index 7bfbe8b4b..000000000
--- a/test/transforms/fixtures/by-key/unwrap-inline/single-block/input.yaml
+++ /dev/null
@@ -1,14 +0,0 @@
-
-nodes:
-  - kind: block
-    type: paragraph
-    nodes:
-      - kind: text
-        text: w
-      - kind: inline
-        type: hashtag
-        nodes:
-          - kind: text
-            text: or
-      - kind: text
-        text: d
diff --git a/test/transforms/fixtures/by-key/unwrap-inline/single-block/output.yaml b/test/transforms/fixtures/by-key/unwrap-inline/single-block/output.yaml
deleted file mode 100644
index 27f668fe2..000000000
--- a/test/transforms/fixtures/by-key/unwrap-inline/single-block/output.yaml
+++ /dev/null
@@ -1,7 +0,0 @@
-
-nodes:
-  - kind: block
-    type: paragraph
-    nodes:
-      - kind: text
-        text: word