This commit removes checks by the `query`, `update` and `init` macroses
that there are duplicate methods with the same name.

The reason this causes an issue is that in contrast with the rustc,
rust-analyzer expands macroses using the same process all the time.
This means that lazy_static storage for the macro is not dropped
between invocations which produces the error. After this change, the
new declaration of the method expanded by the rust-analyzer will just
replace the old one.

This will change will also make the macros' implementation more correct
for 2 reasons:

1. The checks we had are not reliable. They only check for duplication
   inside one crate, which in most cases is already coverred by the
   compiler when it check that there are no 2 methods with the same
   name.
2. Even if there are 2 method with the same name (in the same crate or
   across the crates), compiler will still report an error because these
   methods are exported by the WASM module with the same name. Such
   error method is more difficult to read then the ones we had, but it
   is more correct and works 100% of the time, which is more important.