Currenly Member exports GrpcURL already as a struct variable. However,
when addressing the var-naming linting issues, renaming it from GrpcURL
to GRPCURL, clashes with the GRPCURL() function.
Given that it's already an exported variable, there's no need to define
a getter function. The use of this variable is also mixed, with calls to
both the exported variable (GrpcURL) and the function [GRPCURL()].
Signed-off-by: Ivan Valdes <ivan@vald.es>