clippy false positive lint (redundant_closure_call)

[OverOrion]

For some reason (maybe different toolchain versions?) there is a false positive clippy lint:

error: try not to call a closure in the expression where it is declared
  --> core-primitives/enclave-metrics/src/lib.rs:38:2
   |
38 |     TopPoolSizeDecrement,
   |     ^^^^^^^^^^^^^^^^^^^^ help: try doing something like: `TopPoolSizeDecrement`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_cal

This particular lint (clippy::redundant_closure_call) is disabled in both workspaces so developers will not be confused.

[brenzi]

maybe put into the clippy config file?