remove imports not accessible from control room

growth_damp_utils.py

@@ -3,10 +3,9 @@ import numpy as np
 from scipy.constants import pi, c, m_p, e
 from matplotlib import pyplot as plt
 from scipy.signal import hilbert
-from aps_figures.aps_one_column import *
 from numpy.fft import rfft, rfftfreq
-from FITX import fit_risetime
-from mbtrack2.instability.ions import *
+from pythoncontrol.fitting import fit_risetime
+#from mbtrack2.instability.ions import *
 CIRCUMFERENCE = 354.10
 H_RF = 416
 Q_X = 18.16
@@ -17,11 +16,10 @@ import h5py as hp
 import numpy as np
 import pandas as pd
 import os
-import nafflib
-import argparse
+#import nafflib
+#import argparse
 import matplotlib.pyplot as plt
 from scipy.signal import periodogram, lombscargle, hilbert
-from FITX import fit_risetime
 
 class FBTPostmortemViewer():
     def __init__(self, filename, h_rf):