Don't display old AbstractMCMC notebooks in sidebar (#607)

* Don't display old AbstractMCMC notebooks in sidebar

* Remove Quarto shortcodes

Author: penelopeysm

_quarto.yml

@@ -105,11 +105,9 @@ website:
               - developers/transforms/bijectors/index.qmd
               - developers/transforms/dynamicppl/index.qmd
 
-          - section: "Inference (note: outdated)"
+          - section: "Inference in Detail"
             collapse-level: 1
             contents:
-              - developers/inference/abstractmcmc-interface/index.qmd
-              - developers/inference/abstractmcmc-turing/index.qmd
               - developers/inference/variational-inference/index.qmd
               - developers/inference/implementing-samplers/index.qmd
 
@@ -201,8 +199,6 @@ dev-model-manual: developers/compiler/model-manual
 contexts: developers/compiler/minituring-contexts
 minituring: developers/compiler/minituring-compiler
 using-turing-compiler: developers/compiler/design-overview
-using-turing-abstractmcmc: developers/inference/abstractmcmc-turing
-using-turing-interface: developers/inference/abstractmcmc-interface
 using-turing-variational-inference: developers/inference/variational-inference
 using-turing-implementing-samplers: developers/inference/implementing-samplers
 dev-transforms-distributions: developers/transforms/distributions