Merge pull request #50257 from diegs/merge-fix

Automatic merge from submit-queue (batch tested with PRs 50257, 50247, 50665, 50554, 51077)

Remove incorrect patch-merge directives.

**What this PR does / why we need it**:

Directives were misplaced for the following types:

- MatchExpressions
- Taints
- Tolerations

Per the discussion in #46547, we cannot fix these because it would cause backwards-compatibility problems. Instead, remove the incorrect ones so they don't mislead users. This has no impact on behavior.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

Takes over from #46547 by @aaronlevy

**Release note**:

```release-note
NONE
```

api/openapi-spec/swagger.json

@@ -59968,9 +59968,7 @@
     "properties": {
      "key": {
       "description": "The label key that the selector applies to.",
-      "type": "string",
-      "x-kubernetes-patch-merge-key": "key",
-      "x-kubernetes-patch-strategy": "merge"
+      "type": "string"
      },
      "operator": {
       "description": "Represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt.",
@@ -62085,9 +62083,7 @@
      },
      "key": {
       "description": "Required. The taint key to be applied to a node.",
-      "type": "string",
-      "x-kubernetes-patch-merge-key": "key",
-      "x-kubernetes-patch-strategy": "merge"
+      "type": "string"
      },
      "timeAdded": {
       "description": "TimeAdded represents the time at which the taint was added. It is only written for NoExecute taints.",
@@ -62108,9 +62104,7 @@
      },
      "key": {
       "description": "Key is the taint key that the toleration applies to. Empty means match all taint keys. If the key is empty, operator must be Exists; this combination means to match all values and all keys.",
-      "type": "string",
-      "x-kubernetes-patch-merge-key": "key",
-      "x-kubernetes-patch-strategy": "merge"
+      "type": "string"
      },
      "operator": {
       "description": "Operator represents a key's relationship to the value. Valid operators are Exists and Equal. Defaults to Equal. Exists is equivalent to wildcard for value, so that a pod can tolerate all taints of a particular category.",