Remove cmake build dep from CMakePackages (#2684)

var/spack/repos/builtin/packages/xsdktrilinos/package.py

@@ -28,7 +28,7 @@
 
 class Xsdktrilinos(CMakePackage):
     """xSDKTrilinos contains the portions of Trilinos that depend on PETSc
-    because they would cause a circular dependency if built as part of 
+    because they would cause a circular dependency if built as part of
     Trilinos.
     """
     homepage = "https://trilinos.org/"
@@ -51,8 +51,6 @@ def url_for_version(self, version):
     variant('debug',        default=False,
             description='Builds a debug version of the libraries')
 
-    depends_on('cmake', type='build')
-
     # MPI related dependencies
     depends_on('mpi')
     depends_on('hypre~internal-superlu', when='+hypre')