Remove CSV support

CSV is deprecated upstream. See:
7b8d0249d8

Test: m checkbuild
Change-Id: I4b85535d4296c6f0d1f0eec95b40c065b3143134

libs/hwui/tests/macrobench/main.cpp

@@ -135,8 +135,6 @@ static bool setBenchmarkFormat(const char* format) {
         gBenchmarkReporter.reset(new benchmark::ConsoleReporter());
     } else if (!strcmp(format, "json")) {
         gBenchmarkReporter.reset(new benchmark::JSONReporter());
-    } else if (!strcmp(format, "csv")) {
-        gBenchmarkReporter.reset(new benchmark::CSVReporter());
     } else {
         fprintf(stderr, "Unknown format '%s'", format);
         return false;