build: simplify jasmine node test macro
build: simplify jasmine node test macro

Simplifies the jasmine_node_test macro by no longer
requiring the separate filegroup for extracting test
sources. The rule automatically pulls `JSModuleInfo`
from the `srcs` attribute if `use_direct_specs = True`.

angular/dev-infra,angular/dev-infra,angular/dev-infra,angular/dev-infra