fix issues with compilation

preprocessor statement or unsupported private/public statemens for
modules seem to confuse CMake

src/math.f90

@@ -30,15 +30,6 @@ module math
     module procedure math_expand_real
   end interface math_expand
 
-#if __INTEL_COMPILER >= 1900
-  ! do not make use of associated entities available to other modules
-  private :: &
-    misc, &
-    IO, &
-    config, &
-    parallelization
-#endif
-
   real(pREAL), parameter :: &
     PI = acos(-1.0_pREAL), &                                                                        !< ratio of a circle's circumference to its diameter
     TAU = 2.0_pREAL*PI, &                                                                           !< ratio of a circle's circumference to its radius

src/phase.f90

@@ -353,21 +353,6 @@ module phase
 
   end interface
 
-
-#if __INTEL_COMPILER >= 1900
-  public :: &
-    prec, &
-    math, &
-    rotations, &
-    IO, &
-    config, &
-    material, &
-    result, &
-    crystal, &
-    discretization, &
-    HDF5_utilities
-#endif
-
   public :: &
     phase_init, &
     phase_homogenizedC66, &