[rust/all] Remove .iter() on array example (#4230)

As of Rust 1.53.0, arrays implement the IntoIterator trait, making .iter() on an array unnecessary

de-de/rust-de.html.markdown

@@ -255,7 +255,7 @@ fn main() {
 
     // `for` Schleife/Iterationen
     let array = [1, 2, 3];
-    for i in array.iter() {
+    for i in array {
         println!("{}", i);
     }
 

el-gr/rust-gr.html.markdown

@@ -242,7 +242,7 @@ fn main() {
 
     // Βρόγχοι `for`
     let array = [1, 2, 3];
-    for i in array.iter() {
+    for i in array {
         println!("{}", i);
     }
 

es-es/rust-es.html.markdown

@@ -225,7 +225,7 @@ fn main() {
 
     // bucles `for`
     let array = [1, 2, 3];
-    for i in array.iter() {
+    for i in array {
         println!("{}", i);
     }
 

fr-fr/rust-fr.html.markdown

@@ -221,7 +221,7 @@ fn main() {
 
     // `for` boucles / itération
     let array = [1, 2, 3];
-    for i in array.iter() {
+    for i in array {
         println!("{}", i);
     }
 

it-it/rust-it.html.markdown

@@ -229,7 +229,7 @@ fn main() {
 
     // Ciclo/iterazione con `for`
     let array = [1, 2, 3];
-    for i in array.iter() {
+    for i in array {
         println!("{}", i);
     }
 

pt-br/rust-pt.html.markdown

@@ -234,7 +234,7 @@ fn main() {
 
     // `for` laços de repetição/iteração
     let array = [1, 2, 3];
-    for i in array.iter() {
+    for i in array {
         println!("{}", i);
     }
 
@@ -329,4 +329,3 @@ mais na página oficial [Rust website](http://rust-lang.org).
 
 No Brasil acompanhe os encontros do [Meetup Rust São Paulo]
 (http://www.meetup.com/pt-BR/Rust-Sao-Paulo-Meetup/).
-

ru-ru/rust-ru.html.markdown

@@ -226,7 +226,7 @@ fn main() {
 
     // `for` loops/iteration
     let array = [1, 2, 3];
-    for i in array.iter() {
+    for i in array {
         println!("{}", i);
     }
 

rust.html.markdown

@@ -236,7 +236,7 @@ fn main() {
 
     // `for` loops/iteration
     let array = [1, 2, 3];
-    for i in array.iter() {
+    for i in array {
         println!("{}", i);
     }
 

uk-ua/rust-ua.html.markdown

@@ -233,7 +233,7 @@ fn main() {
 
     // Цикл `for` 
     let array = [1, 2, 3];
-    for i in array.iter() {
+    for i in array {
         println!("{}", i);
     }
 

zh-cn/rust-cn.html.markdown

@@ -211,7 +211,7 @@ fn main() {
 
     // `for` 循环
     let array = [1, 2, 3];
-    for i in array.iter() {
+    for i in array {
         println!("{}", i);
     }