Remove images from README.md

Removed architecture and instrumentation images from README.

Author: jordanmontt

README.md

@@ -157,10 +157,6 @@ The trap also tracks a meta-level state on the active process. Whenever a hook e
 
 The architecture has two strata: `MpMethodProxy` manages the lifecycle of an instrumented method and hides the implementation details, while `MpHandler` is the root class users subclass to define their controlling methods.
 
-![Architecture](https://github.com/user-attachments/assets/c617f480-702d-49d3-8e33-c1aec0756258)
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-![Instrumentation](https://github.com/user-attachments/assets/6c9a0f6a-011e-49f9-a196-3d2ef5c1d5d7)
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 A full description of the design, the implementation, and the empirical evaluation is available in the IWST '24 paper listed in the bibliography. On a suite of 48 benchmarks across four real-world applications, the average overhead is about 1.54× and the meta-safety mechanism itself adds roughly 9% on top. Compared to instrumentation based on the `run:with:in:` hook — which cannot be JIT-compiled — MethodProxies is on average 6.5× faster, with peaks up to 40×.
 
 ## Advanced: Propagating Handlers
@@ -182,4 +178,4 @@ proxies do: #uninstall.
 ## Bibliography
 
 - Jordan Montaño S., Sandoval Alcócer J., Polito G., Ducasse S., Tesone P. *MethodProxies: A Safe and Fast Message-Passing Control Library.* IWST '24, June 2024, France. [PDF](https://hal.science/hal-04708729v1/document)
-- Stéphane Ducasse. *Evaluating Message Passing Control Techniques in Smalltalk.* Journal of Object-Oriented Programming (JOOP), 12, 39–44, SIGS Press, 1999. [PDF](http://rmod-files.lille.inria.fr/Team/Texts/Papers/Duca99aMsgPassingControl.pdf)
+- Stéphane Ducasse. *Evaluating Message Passing Control Techniques in Smalltalk.* Journal of Object-Oriented Programming (JOOP), 12, 39–44, SIGS Press, 1999. [PDF](http://rmod-files.lille.inria.fr/Team/Texts/Papers/Duca99aMsgPassingControl.pdf)