Simplify soft dependencies and update the dummy-creation process (#36827)

* Reverse dependency map shouldn't be created when test_all is set

* [test_all] Remove dummies

* Modular fixes

* Update utils/check_repo.py

Co-authored-by: Pablo Montalvo <39954772+molbap@users.noreply.github.com>

* [test_all] Better docs

* [test_all] Update src/transformers/commands/chat.py

Co-authored-by: Joao Gante <joaofranciscocardosogante@gmail.com>

* [test_all] Remove deprecated AdaptiveEmbeddings from the tests

* [test_all] Doc builder

* [test_all] is_dummy

* [test_all] Import utils

* [test_all] Doc building should not require all deps

---------

Co-authored-by: Pablo Montalvo <39954772+molbap@users.noreply.github.com>
Co-authored-by: Joao Gante <joaofranciscocardosogante@gmail.com>

docs/source/en/model_doc/blip.md

@@ -88,6 +88,11 @@ The original code can be found [here](https://github.com/salesforce/BLIP).
 [[autodoc]] BlipTextModel
     - forward
 
+## BlipTextLMHeadModel
+
+[[autodoc]] BlipTextLMHeadModel
+- forward
+
 ## BlipVisionModel
 
 [[autodoc]] BlipVisionModel
@@ -123,6 +128,11 @@ The original code can be found [here](https://github.com/salesforce/BLIP).
 [[autodoc]] TFBlipTextModel
     - call
 
+## TFBlipTextLMHeadModel
+
+[[autodoc]] TFBlipTextLMHeadModel
+- forward
+
 ## TFBlipVisionModel
 
 [[autodoc]] TFBlipVisionModel