Delete directory with vestigial configuration file (#33825)

var/spack/mock_configs/site_spackconfig/compilers.yaml

@@ -1,40 +0,0 @@
-compilers:
-  all:
-    clang@3.3:
-      cc: /path/to/clang
-      cxx: /path/to/clang++
-      f77: None
-      fc: None
-      modules: None
-      strategy: PATH
-    gcc@4.5.0:
-      cc: /path/to/gcc
-      cxx: /path/to/g++
-      f77: /path/to/gfortran
-      fc: /path/to/gfortran
-      modules: None
-      strategy: PATH
-    gcc@5.2.0:
-      cc: cc
-      cxx: CC
-      f77: ftn
-      fc: ftn
-      modules:
-        - PrgEnv-gnu
-        - gcc/5.2.0
-      strategy: MODULES
-    intel@15.0.1:
-      cc: cc
-      ccx: CC
-      f77: ftn
-      fc: ftn
-      modules:
-      - PrgEnv-intel
-      - intel/15.0.1
-      strategy: MODULES
-    intel@15.1.2:
-      cc: /path/to/icc
-      cxx: /path/to/ic++
-      f77: /path/to/ifort
-      fc: /path/to/ifort
-      strategy: PATH