Removed the cifbuild from CIAO annular spectra (#1339)

Signed-off-by: rz-wang <rzwang@umich.edu>

Author: rz-wang

xga/generate/ciao/spec.py

@@ -17,7 +17,6 @@
 from xga.samples.base import BaseSample
 from xga.sources import BaseSource
 from xga.sources.base import NullSource
-from .misc import cifbuild
 from .run import ciao_call
 
 
@@ -433,10 +432,6 @@ def ciao_spectrum_set(sources: Union[BaseSource, BaseSample], radii: Union[List[
             raise ValueError("Not all of the radii passed for {s} are larger than the annulus that "
                              "precedes them.".format(s=src_name))
 
-    # Just to make sure calibration files have been generated, though I don't actually think they could
-    #  have gotten to this point without them
-    cifbuild(sources, num_cores, disable_progress)
-
     # This generates a spectra between the innermost and outmost radii for each source, and a universal RMF
     if one_rmf:
         innermost_rads = Quantity([r_set[0] for r_set in radii], radii[0].unit)