The current TRIM_FLAGS specify gcflags and asmflags directly in order to
trim the path of the resulting binaries. This results in an error where
the plugins cannot be loaded due to the error: "built with a different
version of package". Per https://github.com/golang/go/issues/51955 in the
golang repository, this is explicitly not supported. Switching to use the
go build command's -trimpath flag resolves the issue.
Signed-off-by: Billy Olsen <billy.olsen@gmail.com>
