Revert "POWER: bugfix correct complex phase of strain"

strain itself was correct (at least up to a sign) one needs to be
careful about h+ and hx though

This reverts commit 847d159f.

POWER/power.py

@@ -126,9 +126,7 @@ def psi4ToStrain(mp_psi4, f0):
 	hf = ffi(freq, dhf, f0)
 
 	time, h = myFourierTransformInverse(freq, hf, t0[0])
-        # we have d^2(h+ -i hx)/dt^2 = psi4 ie the sign of the imaginary part
-        # needs to be flipped
-	hTable = np.column_stack((time, h.conj()))
+	hTable = np.column_stack((time, h))
 	return hTable
 
 #Fixed frequency integration