Revert the FunctoreCache build to be off (follow up !2063)

Revert the FunctoreCache build for THOR_BUILD_TEST_FUNCTOR_CACHE to be off. This shouldn't affect any nightlies builds and tests.

Related to discussion here: 397010d6

changed the description

assigned to @msaur

/ci-test --merge

• [2020-07-13 15:57] Validation started with lhcb-master-mr#1080
• [2020-07-15 18:05] Validation started with lhcb-master-mr#1086
• [2020-07-18 10:21] Validation started with lhcb-master-mr#1095

mentioned in merge request !2134 (merged)

@jonrob Integration test and nighlitlies look OK. One existing error in Brunel is not caused by this MR. Ready to be merged.

assigned to @jonrob

mentioned in issue Moore#198 (closed)

resolved all threads

merged

mentioned in commit 6a7ff5d2

unassigned @jonrob and @msaur

changed title from Revert the FunctoreCache build to be off to Revert the FunctoreCache build to be off (follow up !2063)

added Build bug fix labels