remove aoc solutions

examples/euler/euler_14.zr

@@ -0,0 +1,22 @@
+func collatz_num[n: i64] : i64
+    if n % 2 == 0
+        return n / 2
+    return n * 3 + 1
+
+func collatz_seq[n: i64]: i64
+    i := 1
+    while n != 1
+        n = collatz_num(n)
+        i += 1
+    return i
+
+func main[] : i64
+    max := 0
+    max_index := 0
+
+    for i in 1..1000000
+        seq := collatz_seq(i)
+        if seq > max
+            max = seq
+            max_index = i
+    io.println_i64(max_index)