Vorinostat Unknown Status Phase 2 Trials for Recurrent Laryngeal Squamous Cell Carcinoma / Stage IVA Oropharyngeal Squamous Cell Carcinoma / Stage IVC Oral Cavity Squamous Cell Carcinoma / Recurrent Hypopharyngeal Squamous Cell Carcinoma / Stage IVA Hypopharyngeal Squamous Cell Carcinoma / Stage IVC Hypopharyngeal Squamous Cell Carcinoma / Stage IVB Oropharyngeal Squamous Cell Carcinoma / Stage IVA Oral Cavity Squamous Cell Carcinoma / Paranasal Sinus Squamous Cell Carcinoma / Stage IVB Oral Cavity Squamous Cell Carcinoma / Stage IVC Laryngeal Squamous Cell Carcinoma / Recurrent Oropharyngeal Squamous Cell Carcinoma / Stage IVB Hypopharyngeal Squamous Cell Carcinoma / Stage IVC Oropharyngeal Squamous Cell Carcinoma / Stage IVA Laryngeal Squamous Cell Carcinoma / Stage IVB Laryngeal Squamous Cell Carcinoma / Recurrent Oral Cavity Squamous Cell Carcinoma Treatment