remove extraneous concurrency file

concurrency

-testConcurrency1X() {
-  MEMORY_AVAILABLE=512 capture ${bp_dir}/lib/concurrency.sh
-  assertCaptured "Detected 512 MB available memory, 512 MB limit per process (WEB_MEMORY)"
-  assertCaptured "Recommending WEB_CONCURRENCY=1"
-  assertCapturedSuccess
-}
-
-testConcurrency2X() {
-  MEMORY_AVAILABLE=1024 capture ${bp_dir}/lib/concurrency.sh
-  assertCaptured "Detected 1024 MB available memory, 512 MB limit per process (WEB_MEMORY)"
-  assertCaptured "Recommending WEB_CONCURRENCY=2"
-  assertCapturedSuccess
-}
-
-testConcurrencyPX() {
-  MEMORY_AVAILABLE=6144 capture ${bp_dir}/lib/concurrency.sh
-  assertCaptured "Detected 6144 MB available memory, 512 MB limit per process (WEB_MEMORY)"
-  assertCaptured "Recommending WEB_CONCURRENCY=12"
-  assertCapturedSuccess
-}
-
-testConcurrencyCustomLimit() {
-  MEMORY_AVAILABLE=1024 WEB_MEMORY=256 capture ${bp_dir}/lib/concurrency.sh
-  echo "This is STD_OUT:"
-  cat ${STD_OUT}
-  echo "This is STD_ERR:"
-  cat ${STD_ERR}
-  assertCaptured "Detected 1024 MB available memory, 256 MB limit per process (WEB_MEMORY)"
-  assertCaptured "Recommending WEB_CONCURRENCY=6"
-  assertCapturedSuccess
-}
-
-testConcurrencySaneMaximum() {
-  MEMORY_AVAILABLE=6144 WEB_MEMORY=32 capture ${bp_dir}/lib/concurrency.sh
-  assertCaptured "Detected 6144 MB available memory, 32 MB limit per process (WEB_MEMORY)"
-  assertCaptured "Recommending WEB_CONCURRENCY=32"
-  assertCapturedSuccess
-}