fix(curriculum): remove before/after-user-code from rosetta challenges 11-15 (#66391)

curriculum/challenges/english/blocks/rosetta-code-challenges/594d8d0ab97724821379b1e6.md

@@ -14,6 +14,13 @@ The case where the collection is empty may be ignored. Care must be taken to han
 
 If it is not appropriate or possible to support a general collection, use a vector (array), if possible. If it is not appropriate or possible to support an unspecified value type, use integers.
 
+# --before-each--
+
+```js
+const arr1 = [1, 3, 6, 6, 6, 6, 7, 7, 12, 12, 17];
+const arr2 = [1, 2, 4, 4, 1];
+```
+
 # --hints--
 
 `mode` should be a function.
@@ -36,13 +43,6 @@ assert.deepEqual(mode(arr2).sort(), [1, 4]);
 
 # --seed--
 
-## --after-user-code--
-
-```js
-const arr1 = [1, 3, 6, 6, 6, 6, 7, 7, 12, 12, 17];
-const arr2 = [1, 2, 4, 4, 1];
-```
-
 ## --seed-contents--
 
 ```js

curriculum/challenges/english/blocks/rosetta-code-challenges/594d966a1467eb84194f0086.md

@@ -48,14 +48,6 @@ assert(typeof pythagoreanMeans === 'function');
 
 `pythagoreanMeans([1, 2, ..., 10])` should equal the same output above.
 
-```js
-assert.deepEqual(pythagoreanMeans(range1), answer1);
-```
-
-# --seed--
-
-## --after-user-code--
-
 ```js
 const range1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
 const answer1 = {
@@ -66,8 +58,11 @@ const answer1 = {
   },
   test: 'is A >= G >= H ? yes'
 };
+assert.deepEqual(pythagoreanMeans(range1), answer1);
 ```
 
+# --seed--
+
 ## --seed-contents--
 
 ```js

curriculum/challenges/english/blocks/rosetta-code-challenges/594da033de4190850b893874.md

@@ -25,18 +25,13 @@ assert(typeof rms === 'function');
 `rms([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])` should equal `6.2048368229954285`.
 
 ```js
+const arr1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
+const answer1 = 6.2048368229954285;
 assert.equal(rms(arr1), answer1);
 ```
 
 # --seed--
 
-## --after-user-code--
-
-```js
-const arr1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
-const answer1 = 6.2048368229954285;
-```
-
 ## --seed-contents--
 
 ```js

curriculum/challenges/english/blocks/rosetta-code-challenges/594db4d0dedb4c06a2a4cefd.md

@@ -34,19 +34,14 @@ assert(typeof babbage === 'function');
 `babbage(99736, 269696)` should not return 99736 (there is a smaller answer).
 
 ```js
+const babbageAns = 99736;
+const endDigits = 269696;
+const answer = 25264;
 assert.equal(babbage(babbageAns, endDigits), answer);
 ```
 
 # --seed--
 
-## --after-user-code--
-
-```js
-const babbageAns = 99736;
-const endDigits = 269696;
-const answer = 25264;
-```
-
 ## --seed-contents--
 
 ```js

curriculum/challenges/english/blocks/rosetta-code-challenges/594dc6c729e5700999302b45.md

@@ -20,6 +20,31 @@ Determine whether a generated string of brackets is balanced; that is, whether i
 | <code>\[]]\[\[]</code>    | false  |
 | <code>\[\[\[\[]]]]</code> | true   |
 
+# --before-each--
+
+```js
+const testCases = [
+  '[]',
+  ']][[[][][][]][',
+  '[][[[[][][[[]]]]]]',
+  '][',
+  '[[[]]]][[]',
+  '][[]',
+  '][[][]][[[]]',
+  '[[][]]][',
+  '[[[]]][[]]]][][[',
+  '[]][[]]][[[[][]]',
+  '][]][[][',
+  '[[]][[][]]',
+  '[[]]',
+  ']][]][[]][[[',
+  '][]][][[',
+  '][][',
+  '[]]]',
+  ''
+];
+```
+
 # --hints--
 
 `isBalanced` should be a function.
@@ -138,31 +163,6 @@ assert(isBalanced(testCases[17]));
 
 # --seed--
 
-## --after-user-code--
-
-```js
-const testCases = [
-  '[]',
-  ']][[[][][][]][',
-  '[][[[[][][[[]]]]]]',
-  '][',
-  '[[[]]]][[]',
-  '][[]',
-  '][[][]][[[]]',
-  '[[][]]][',
-  '[[[]]][[]]]][][[',
-  '[]][[]]][[[[][]]',
-  '][]][[][',
-  '[[]][[][]]',
-  '[[]]',
-  ']][]][[]][[[',
-  '][]][][[',
-  '][][',
-  '[]]]',
-  ''
-];
-```
-
 ## --seed-contents--
 
 ```js