How to remove the two heater hoses off the firewall for a 2009 ford mustang?

I have a water leak under the dash on the passenger side front seat, the water is clear and does NOT smell, so I have been told this is a clogged hose. There appears to be no clamps on these two hoses when they meet the firewall which from a look under the hood, both go to the front of the engine.

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