Revert analyzer hack – fixed version published (#23)

diff --git a/pubspec.yaml b/pubspec.yaml
index 24b0adc..94646ae 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -12,6 +12,3 @@
 dev_dependencies:
   pedantic: ^1.0.0
   test: ^1.0.0
-
-  # Remove when https://github.com/dart-lang/sdk/issues/39702 is fixed
-  analyzer: <0.39.2