los angeles art gallery jeffrey deitch interview by OLIVIER ZAHM portrait by JASPER BRIGGS Deitch Projects produced over 250 exhibitions and public events during its 15-year history, turning Jeffrey Deitch into one of New York’s most unconventional gallerists. When he closed his space, in 2010, to become the new director of the Museum of Contemporary Art in Los Angeles, it was the first sign that New York culture would be emigrating to Los Angeles. After his controversial departure from MOCA, Jeffrey Deitch is making his comeback in Hollywood, opening in October a gigantic space where he will push the boundaries of art with his iconoclastic museum-quality exhibitions. OLIVIER ZAHM — Jeffrey, do you remember the first time you went to LA? JEFFREY DEITCH — I do, yes. Well, there’s one time that I went to LA that is not relevant to my art experience. That was in the 1970s. The…