cherry pick __init__ (for real)

Author: spjuhel

climada/trajectories/__init__.py

@@ -21,15 +21,9 @@
 
 """
 
-from .interpolated_trajectory import InterpolatedRiskTrajectory
 from .interpolation import AllLinearStrategy, ExponentialExposureStrategy
-from .snapshot import Snapshot
-from .static_trajectory import StaticRiskTrajectory
 
 __all__ = [
-    "InterpolatedRiskTrajectory",
     "AllLinearStrategy",
     "ExponentialExposureStrategy",
-    "Snapshot",
-    "StaticRiskTrajectory",
 ]