Remove the return type from the syscall lists and parser.

It's not used, so it's just noise.

Change-Id: I58260bf3f2f8513f80dc9fa59e856e4d23e4a011
diff --git a/libc/SECCOMP_ALLOWLIST_APP.TXT b/libc/SECCOMP_ALLOWLIST_APP.TXT
index 80b15b2..a46a33c 100644
--- a/libc/SECCOMP_ALLOWLIST_APP.TXT
+++ b/libc/SECCOMP_ALLOWLIST_APP.TXT
@@ -4,59 +4,59 @@
 # This file is processed by a python script named genseccomp.py.
 
 # Needed for debugging 32-bit Chrome
-int	pipe(int pipefd[2])	lp32
+pipe(int pipefd[2])	lp32
 
 # b/34651972
-int	access(const char *pathname, int mode)	lp32
-int	stat64(const char*, struct stat64*)	lp32
+access(const char *pathname, int mode)	lp32
+stat64(const char*, struct stat64*)	lp32
 
 # b/34813887
-int	open(const char *path, int oflag, ... ) lp32,x86_64
-int	getdents(unsigned int fd, struct linux_dirent *dirp, unsigned int count) lp32,x86_64
+open(const char *path, int oflag, ... ) lp32,x86_64
+getdents(unsigned int fd, struct linux_dirent *dirp, unsigned int count) lp32,x86_64
 
 # b/34719286
-int	eventfd(unsigned int initval, int flags)	lp32
+eventfd(unsigned int initval, int flags)	lp32
 
 # b/34817266
-int	epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout)	lp32
+epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout)	lp32
 
 # b/34908783
-int	epoll_create(int size)	lp32
+epoll_create(int size)	lp32
 
 # b/34979910
-int	creat(const char *pathname, mode_t mode)	lp32
-int	unlink(const char *pathname)	lp32
+creat(const char *pathname, mode_t mode)	lp32
+unlink(const char *pathname)	lp32
 
 # b/35059702
-int	lstat64(const char*, struct stat64*)	lp32
+lstat64(const char*, struct stat64*)	lp32
 
 # b/35217603
-int	fcntl(int fd, int cmd, ... /* arg */ )	lp32
-pid_t	fork()	lp32
-int	poll(struct pollfd *fds, nfds_t nfds, int timeout)	lp32
+fcntl(int fd, int cmd, ... /* arg */ )	lp32
+fork()	lp32
+poll(struct pollfd *fds, nfds_t nfds, int timeout)	lp32
 
 # b/35906875
-int	inotify_init()	lp32
-uid_t	getuid()	lp32
+inotify_init()	lp32
+getuid()	lp32
 
 # b/36435222
-int	remap_file_pages(void *addr, size_t size, int prot, size_t pgoff, int flags)	lp32
+remap_file_pages(void *addr, size_t size, int prot, size_t pgoff, int flags)	lp32
 
 # b/36449658
-int	rename(const char *oldpath, const char *newpath)	lp32
+rename(const char *oldpath, const char *newpath)	lp32
 
 # b/36726183. Note arm does not support mmap
-void*	mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset)	x86
+mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset)	x86
 
 # b/37769298
-int dup2(int oldfd, int newfd)	lp32
+dup2(int oldfd, int newfd)	lp32
 
 # b/62779795
-int compat_select:_newselect(int n, unsigned long* inp, unsigned long* outp, unsigned long* exp, struct timeval* timeout) lp32
+compat_select:_newselect(int n, unsigned long* inp, unsigned long* outp, unsigned long* exp, struct timeval* timeout) lp32
 
 # b/62090571
-int mkdir(const char *pathname, mode_t mode)	lp32
+mkdir(const char *pathname, mode_t mode)	lp32
 
 # Not used by bionic in U because riscv64 doesn't have it, but still
 # used by legacy apps (http://b/254179267).
-int renameat(int, const char*, int, const char*)  arm,x86,arm64,x86_64
+renameat(int, const char*, int, const char*)  arm,x86,arm64,x86_64