perf c2c: Remove unneeded semicolon

Fixes coccicheck warnings:

 tools/perf/builtin-c2c.c:1712:2-3: Unneeded semicolon
 tools/perf/builtin-c2c.c:1928:2-3: Unneeded semicolon
 tools/perf/builtin-c2c.c:2962:2-3: Unneeded semicolon
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/1588064336-70456-1-git-send-email-zou_wei@huawei.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-c2c.c

@@ -1709,7 +1709,7 @@ static struct c2c_dimension *get_dimension(const char *name)
 
 		if (!strcmp(dim->name, name))
 			return dim;
-	};
+	}
 
 	return NULL;
 }
@@ -1925,7 +1925,7 @@ static bool he__display(struct hist_entry *he, struct c2c_stats *stats)
 		FILTER_HITM(tot_hitm);
 	default:
 		break;
-	};
+	}
 
 #undef FILTER_HITM
 
@@ -2959,7 +2959,7 @@ static int perf_c2c__record(int argc, const char **argv)
 
 		rec_argv[i++] = "-e";
 		rec_argv[i++] = perf_mem_events__name(j);
-	};
+	}
 
 	if (all_user)
 		rec_argv[i++] = "--all-user";