chore: remove manual release-as specifiers

Author: jdc-pub

.config/release-please-config.json

@@ -11,12 +11,9 @@
   "pull-request-footer": "This release was generated with [Release Please](https://github.com/googleapis/release-please).",
   "packages": {
     "crates/git-rewrite": {
-      "include-component-in-tag": false,
-      "release-as": "0.1.1"
+      "include-component-in-tag": false
     },
-    "crates/git-filter-tree": {
-      "release-as": "0.2.0"
-    }
+    "crates/git-filter-tree": {}
   },
   "plugins": [{ "type": "sentence-case" }, { "type": "cargo-workspace" }],
   "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json"