Remove screenshots since it can be natively done

You can use PS + Start anyway.

src/Makefile

@@ -2,7 +2,7 @@ TARGET := VITAident
 TITLE_ID := VID000016
 SOURCES := src
 
-OBJS = app.o font.o fs.o graphics.o kernel.o main.o net.o power.o screenshot.o utils.o \
+OBJS = app.o font.o fs.o graphics.o kernel.o main.o net.o power.o utils.o \
 
 PREFIX   = arm-vita-eabi
 CC       = $(PREFIX)-gcc

src/main.c

@@ -5,7 +5,6 @@
 #include "main.h"
 #include "net.h"
 #include "power.h"
-#include "screenshot.h"
 #include "utils.h"
 
 int main(int argc, char *argv[])