diff --git a/tunnel/tools/ndk-compat/compat.c b/tunnel/tools/ndk-compat/compat.c
index 2c54c086..c5ce85ec 100644
--- a/tunnel/tools/ndk-compat/compat.c
+++ b/tunnel/tools/ndk-compat/compat.c
@@ -6,58 +6,6 @@
 
 #define FILE_IS_EMPTY
 
-#if defined(__ANDROID_MIN_SDK_VERSION__) && __ANDROID_MIN_SDK_VERSION__ < 18
-#undef FILE_IS_EMPTY
-#include <stdio.h>
-#include <stdlib.h>
-
-ssize_t getdelim(char **buf, size_t *bufsiz, int delimiter, FILE *fp)
-{
-	char *ptr, *eptr;
-
-	if (*buf == NULL || *bufsiz == 0) {
-		*bufsiz = BUFSIZ;
-		if ((*buf = malloc(*bufsiz)) == NULL)
-			return -1;
-	}
-
-	for (ptr = *buf, eptr = *buf + *bufsiz;;) {
-		int c = fgetc(fp);
-		if (c == -1) {
-			if (feof(fp)) {
-				ssize_t diff = (ssize_t)(ptr - *buf);
-				if (diff != 0) {
-					*ptr = '\0';
-					return diff;
-				}
-			}
-			return -1;
-		}
-		*ptr++ = c;
-		if (c == delimiter) {
-			*ptr = '\0';
-			return ptr - *buf;
-		}
-		if (ptr + 2 >= eptr) {
-			char *nbuf;
-			size_t nbufsiz = *bufsiz * 2;
-			ssize_t d = ptr - *buf;
-			if ((nbuf = realloc(*buf, nbufsiz)) == NULL)
-				return -1;
-			*buf = nbuf;
-			*bufsiz = nbufsiz;
-			eptr = nbuf + nbufsiz;
-			ptr = nbuf + d;
-		}
-	}
-}
-
-ssize_t getline(char **buf, size_t *bufsiz, FILE *fp)
-{
-	return getdelim(buf, bufsiz, '\n', fp);
-}
-#endif
-
 #if defined(__ANDROID_MIN_SDK_VERSION__) && __ANDROID_MIN_SDK_VERSION__ < 24
 #undef FILE_IS_EMPTY
 #include <string.h>
diff --git a/tunnel/tools/ndk-compat/compat.h b/tunnel/tools/ndk-compat/compat.h
index 32f6d799..7dfd8e14 100644
--- a/tunnel/tools/ndk-compat/compat.h
+++ b/tunnel/tools/ndk-compat/compat.h
@@ -4,12 +4,6 @@
  *
  */
 
-#if defined(__ANDROID_MIN_SDK_VERSION__) && __ANDROID_MIN_SDK_VERSION__ < 18
-#include <stdio.h>
-ssize_t getdelim(char **buf, size_t *bufsiz, int delimiter, FILE *fp);
-ssize_t getline(char **buf, size_t *bufsiz, FILE *fp);
-#endif
-
 #if defined(__ANDROID_MIN_SDK_VERSION__) && __ANDROID_MIN_SDK_VERSION__ < 24
 char *strchrnul(const char *s, int c);
 #endif