Remove unneeded function

Assignment9/src/png.c

@@ -35,31 +35,17 @@
 #include <stdbool.h>
 #include "png.h"
 
-int get_fd(char *path) {
+FILE *get_file(char *path) {
 	FILE *fp = fopen(path, "rb");
 	if (fp == NULL) {
 		perror("fopen");
 		exit(EXIT_FAILURE);
 	}
-	int fd = fileno(fp);
-	if (fd == -1) {
-		perror("fileno");
-		exit(EXIT_FAILURE);
-	}
-	return fd;
-}
-
-FILE *get_fp(int fd) {
-	FILE *fp = fdopen(fd, "rb");
-	if (fp == NULL) {
-		perror("fdopen");
-		exit(EXIT_FAILURE);
-	}
 	return fp;
 }
 
-char *load_file(int fd) {
-	FILE *fp = get_fp(fd);
+char *load_file(char *path) {
+	FILE *fp = get_file(path);
 	fseek(fp, 0, SEEK_END);
 	long size = ftell(fp);
 	rewind(fp);