Update hint_processor docs

[fmoletta]

The hint_processor docs still mention the proxies that have long ago been removed from the code

[github-actions[bot]]

Benchmark Results for unmodified programs :rocket:

Command	Mean [s]	Min [s]	Max [s]	Relative
base big_factorial	2.271 ± 0.025	2.237	2.306	1.02 ± 0.01
head big_factorial	2.236 ± 0.011	2.225	2.262	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base big_fibonacci	2.240 ± 0.019	2.224	2.266	1.01 ± 0.01
head big_fibonacci	2.228 ± 0.018	2.210	2.253	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base blake2s_integration_benchmark	8.196 ± 0.074	8.127	8.343	1.00
head blake2s_integration_benchmark	8.252 ± 0.103	8.125	8.393	1.01 ± 0.02

Command	Mean [s]	Min [s]	Max [s]	Relative
base compare_arrays_200000	2.286 ± 0.012	2.273	2.317	1.01 ± 0.01
head compare_arrays_200000	2.274 ± 0.011	2.261	2.297	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base dict_integration_benchmark	1.466 ± 0.010	1.453	1.480	1.01 ± 0.01
head dict_integration_benchmark	1.457 ± 0.006	1.451	1.467	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base field_arithmetic_get_square_benchmark	1.294 ± 0.012	1.282	1.318	1.01 ± 0.01
head field_arithmetic_get_square_benchmark	1.281 ± 0.008	1.274	1.302	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base integration_builtins	8.310 ± 0.100	8.182	8.468	1.01 ± 0.01
head integration_builtins	8.226 ± 0.059	8.165	8.370	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base keccak_integration_benchmark	8.547 ± 0.084	8.447	8.655	1.01 ± 0.01
head keccak_integration_benchmark	8.490 ± 0.069	8.428	8.623	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base linear_search	2.321 ± 0.017	2.305	2.360	1.00 ± 0.01
head linear_search	2.313 ± 0.021	2.291	2.346	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base math_cmp_and_pow_integration_benchmark	1.571 ± 0.007	1.563	1.583	1.01 ± 0.01
head math_cmp_and_pow_integration_benchmark	1.558 ± 0.009	1.546	1.573	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base math_integration_benchmark	1.448 ± 0.010	1.442	1.474	1.01 ± 0.01
head math_integration_benchmark	1.436 ± 0.011	1.425	1.455	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base memory_integration_benchmark	1.274 ± 0.012	1.263	1.304	1.02 ± 0.01
head memory_integration_benchmark	1.249 ± 0.005	1.242	1.261	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base operations_with_data_structures_benchmarks	1.606 ± 0.015	1.590	1.637	1.00 ± 0.01
head operations_with_data_structures_benchmarks	1.603 ± 0.008	1.591	1.613	1.00

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
base pedersen	605.4 ± 3.3	601.1	610.2	1.00 ± 0.01
head pedersen	604.8 ± 1.6	601.8	607.0	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base poseidon_integration_benchmark	1.063 ± 0.009	1.048	1.079	1.00
head poseidon_integration_benchmark	1.075 ± 0.005	1.061	1.080	1.01 ± 0.01

Command	Mean [s]	Min [s]	Max [s]	Relative
base secp_integration_benchmark	1.924 ± 0.006	1.916	1.934	1.00 ± 0.01
head secp_integration_benchmark	1.921 ± 0.009	1.908	1.939	1.00

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
base set_integration_benchmark	777.7 ± 14.4	768.9	817.7	1.01 ± 0.02
head set_integration_benchmark	771.2 ± 2.6	767.9	775.1	1.00

Command	Mean [s]	Min [s]	Max [s]	Relative
base uint256_integration_benchmark	4.560 ± 0.033	4.517	4.601	1.01 ± 0.01
head uint256_integration_benchmark	4.531 ± 0.021	4.502	4.577	1.00

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (39e8b08) 97.16% compared to head (9f68b60) 97.16%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1611 +/- ## ======================================= Coverage 97.16% 97.16% ======================================= Files 92 92 Lines 37369 37369 ======================================= Hits 36309 36309 Misses 1060 1060 ```

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