diff --git a/twrp-functions.cpp b/twrp-functions.cpp
index 4a7b340..50f05a7 100644
--- a/twrp-functions.cpp
+++ b/twrp-functions.cpp
@@ -729,130 +729,6 @@
 			((start.tv_sec * 1000) + start.tv_nsec/1000000);
 }
 
-int TWFunc::drop_caches(void) {
-	string file = "/proc/sys/vm/drop_caches";
-	string value = "3";
-	if (write_file(file, value) != 0)
-		return -1;
-	return 0;
-}
-
-int TWFunc::tw_chmod(const string& fn, const string& mode) {
-	long mask = 0;
-	std::string::size_type n = mode.length();
-	int cls = 0;
-
-	if(n == 3)
-		++cls;
-	else if(n != 4)
-	{
-		LOGERR("TWFunc::tw_chmod used with %u long mode string (should be 3 or 4)!\n", mode.length());
-		return -1;
-	}
-
-	for (n = 0; n < mode.length(); ++n, ++cls) {
-		if (cls == 0) {
-			if (mode[n] == '0')
-				continue;
-			else if (mode[n] == '1')
-				mask |= S_ISVTX;
-			else if (mode[n] == '2')
-				mask |= S_ISGID;
-			else if (mode[n] == '4')
-				mask |= S_ISUID;
-			else if (mode[n] == '5') {
-				mask |= S_ISVTX;
-				mask |= S_ISUID;
-			}
-			else if (mode[n] == '6') {
-				mask |= S_ISGID;
-				mask |= S_ISUID;
-			}
-			else if (mode[n] == '7') {
-				mask |= S_ISVTX;
-				mask |= S_ISGID;
-				mask |= S_ISUID;
-			}
-		}
-		else if (cls == 1) {
-			if (mode[n] == '7') {
-				mask |= S_IRWXU;
-			}
-			else if (mode[n] == '6') {
-				mask |= S_IRUSR;
-				mask |= S_IWUSR;
-			}
-			else if (mode[n] == '5') {
-				mask |= S_IRUSR;
-				mask |= S_IXUSR;
-			}
-			else if (mode[n] == '4')
-				mask |= S_IRUSR;
-			else if (mode[n] == '3') {
-				mask |= S_IWUSR;
-				mask |= S_IRUSR;
-			}
-			else if (mode[n] == '2')
-				mask |= S_IWUSR;
-			else if (mode[n] == '1')
-				mask |= S_IXUSR;
-		}
-		else if (cls == 2) {
-			if (mode[n] == '7') {
-				mask |= S_IRWXG;
-			}
-			else if (mode[n] == '6') {
-				mask |= S_IRGRP;
-				mask |= S_IWGRP;
-			}
-			else if (mode[n] == '5') {
-				mask |= S_IRGRP;
-				mask |= S_IXGRP;
-			}
-			else if (mode[n] == '4')
-				mask |= S_IRGRP;
-			else if (mode[n] == '3') {
-				mask |= S_IWGRP;
-				mask |= S_IXGRP;
-			}
-			else if (mode[n] == '2')
-				mask |= S_IWGRP;
-			else if (mode[n] == '1')
-				mask |= S_IXGRP;
-		}
-		else if (cls == 3) {
-			if (mode[n] == '7') {
-				mask |= S_IRWXO;
-			}
-			else if (mode[n] == '6') {
-				mask |= S_IROTH;
-				mask |= S_IWOTH;
-			}
-			else if (mode[n] == '5') {
-				mask |= S_IROTH;
-				mask |= S_IXOTH;
-			}
-			else if (mode[n] == '4')
-				mask |= S_IROTH;
-			else if (mode[n] == '3') {
-				mask |= S_IWOTH;
-				mask |= S_IXOTH;
-			}
-			else if (mode[n] == '2')
-				mask |= S_IWOTH;
-			else if (mode[n] == '1')
-				mask |= S_IXOTH;
-		}
-	}
-
-	if (chmod(fn.c_str(), mask) != 0) {
-		LOGERR("Unable to chmod '%s' %l\n", fn.c_str(), mask);
-		return -1;
-	}
-
-	return 0;
-}
-
 bool TWFunc::Install_SuperSU(void) {
 	if (!PartitionManager.Mount_By_Path("/system", true))
 		return false;
diff --git a/twrp-functions.hpp b/twrp-functions.hpp
index 36cfff5..c10a184 100644
--- a/twrp-functions.hpp
+++ b/twrp-functions.hpp
@@ -72,8 +72,6 @@
 	static int read_file(string fn, string& results); //read from file
 	static int read_file(string fn, uint64_t& results); //read from file
 	static int write_file(string fn, string& line); //write from file
-	static int drop_caches(void); //drop linux cache memory
-	static int tw_chmod(const string& fn, const string& mode); // chmod function that converts a 3 or 4 char string into st_mode automatically
 	static bool Install_SuperSU(void); // Installs su binary and apk and sets proper permissions
 	static bool Try_Decrypting_Backup(string Restore_Path, string Password); // true for success, false for failed to decrypt
 	static string System_Property_Get(string Prop_Name);                // Returns value of Prop_Name from reading /system/build.prop