add remove function typings to pouchdb-core (#10754)

pouchdb-core/pouchdb-core-tests.ts

@@ -75,4 +75,31 @@ namespace PouchDBCoreTests {
         db.info({ ajax: { cache: true }}, (error, result) => {
         });
     }
+
+    function testRemove() {
+      type MyModel = { rev: 'rev', property: 'someProperty '};
+      let model: PouchDB.Core.Document<MyModel>;
+      const id = 'model';
+      const rev = 'rev';
+
+      const db = new PouchDB<MyModel>();
+
+      // Promise version with doc
+      db.remove(model).then( (res: PouchDB.Core.Response) => {});
+
+      // Promise version with doc and options
+      db.remove(model, {}).then( (res: PouchDB.Core.Response) => {});
+
+      // Promise version with docId and rev
+      db.remove(id, rev).then( (res: PouchDB.Core.Response) => {});
+
+      // Promise version with docId and rev and options
+      db.remove(id, rev, {}).then( (res: PouchDB.Core.Response) => {});
+
+      // Callback version with doc
+      db.remove(model, {}, (res: PouchDB.Core.Response) => {});
+
+      // Callback version with docId and rev
+      db.remove(id, rev, {}, (res: PouchDB.Core.Response) => {});
+    }
 }

pouchdb-core/pouchdb-core.d.ts

@@ -319,6 +319,20 @@ declare namespace PouchDB {
             revision?: Core.RevisionId,
             options?: Core.PutOptions): Promise<Core.Response>;
 
+        /** Remove a doc from the database */
+        remove(doc: Core.Document<Content>,
+               options: Core.Options,
+               callback: Core.Callback<Core.Error, Core.Response>): void;
+        remove(docId: Core.DocumentId,
+               revision: Core.RevisionId,
+               options: Core.Options,
+               callback: Core.Callback<Core.Error, Core.Response>): void;
+        remove(doc: Core.Document<Content>,
+               options?: Core.Options): Promise<Core.Response>;
+        remove(docId: Core.DocumentId,
+               revision: Core.RevisionId,
+               options?: Core.Options): Promise<Core.Response>;
+
         /** Get database information */
         info(options: Core.InfoOptions | void,
             callback: Core.Callback<any, Core.DatabaseInfo>): void;