chore(ci): remove freezegun from hatch since it's in riot (#13632)

On #13612 I added freezegun to riot but forgot to remove it from hatch.
This fixes it.

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[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))

## Reviewer Checklist
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---------

Signed-off-by: Juanjo Alvarez <juanjo.alvarezmartinez@datadoghq.com>
Co-authored-by: Emmett Butler <emmett.butler321@gmail.com>

Author: juanjux

hatch.toml

@@ -757,24 +757,6 @@ view = [
     "python scripts/ci_visibility/view_snapshot.py {args:}",
 ]
 
-[envs.freezegun]
-template = "freezegun"
-dependencies = [
-    "freezegun{matrix:freezegun}",
-    "pytest",
-    "pytest-cov",
-    "hypothesis",
-]
-
-[envs.freezegun.scripts]
-test = [
-    "pytest tests/contrib/freezegun {args:}",
-]
-
-[[envs.freezegun.matrix]]
-python = ["3.10", "3.12"]
-freezegun = ["~=1.3.0", "~=1.5.0"]
-
 [envs.selenium]
 template = "selenium"
 dependencies = [

tests/contrib/suitespec.yml

@@ -693,7 +693,7 @@ suites:
         - '@tracing'
         - '@freezegun'
         - tests/contrib/freezegun/*
-    runner: hatch
+    runner: riot
     snapshot: true
   gevent:
     paths: