[core] Why is there a dependency on `reqwest` crate here?

[nazmulidris]

Currently the r3bl_rs_utils_core crate (in the core folder) has a dependency on reqwest

It was discovered during this audit:
from #112

The license terms are good, however, the question arises why is it marked as a dependency in the first place? If there is a legit reason then we can retain the dependency and leave this as-is, otherwise we can drop the dependency.

[Harshil-Jani]

@nazmulidris I investigated on this. I found that https://github.com/r3bl-org/r3bl_rs_utils/blob/68c0fe7967db6e84d36ad45e48bd9495ebdb6cb3/core/src/decl_macros.rs#L233 there exist a macro make_api_call_for which uses reqwest. But the macro is not used anywhere so I feel this safe to be removed from everywhere and remove the reqwest crate if we are not using it anywhere else.

[nazmulidris]

@Harshil-Jani It is safe to remove this macro. It was being used in another repo (shown below). I have moved this declarative macro into that other repo which needs it.

https://github.com/r3bl-org/address-book-with-redux-tui/blob/main/src/json_rpc/mod.rs#L22