make: revert adding -rpath by default

This reverts commits 89ebf529 and 1d8b5706.
I didn't realize that setting rpath is considered bad practice by most
distributions.  I'm really "spoiled" by nix(pkgs/os).
5 jobs from make-rpath in 21 seconds
Status Job ID Name Coverage
  Build
canceled #72957
docker linux amd64
build:linux:amd64

passed #30542
docker linux amd64
build:linux:amd64

00:00:25

 
  Test
passed #30544
docker linux amd64
deckard:linux:amd64

00:00:21

failed #30545
docker linux amd64 allowed to fail
respdiff:linux:amd64

00:00:13

passed #30543
docker linux amd64
test:linux:amd64

00:00:17

 
Name Stage Failure
failed
respdiff:linux:amd64 Test There is an unknown failure, please try again
Downloading artifacts from coordinator... ok        id=30542 responseStatus=200 OK token=jKhEDtfc
$ LD_LIBRARY_PATH=$(pwd)/.local/lib /home/kresdbench/run.sh $(pwd)/.local/sbin/kresd
/bin/bash: line 48: /home/kresdbench/run.sh: No such file or directory
Uploading artifacts...
WARNING: results/*.json: no matching files
WARNING: results/*.out: no matching files
WARNING: results/*.log: no matching files
Uploading artifacts to coordinator... ok id=30545 responseStatus=201 Created token=GDmzg93H
ERROR: Job failed: exit code 1