Make hardcoded hours string translatable

app/Locale/sr_Latn_RS/translations.php

@@ -256,7 +256,6 @@ return array(
     'Do you really want to remove this sub-task?' => 'Da li da uklonim pod-zdadatak?',
     'Remaining:' => 'Preostalo:',
     'hours' => 'sati',
-    'spent' => 'potrošeno',
     'estimated' => 'procenjeno',
     'Sub-Tasks' => 'Pod-zadaci',
     'Add a sub-task' => 'Dodaj pod-zadatak',
@@ -481,7 +480,6 @@ return array(
     // 'Link removed successfully.' => '',
     // 'Link labels' => '',
     // 'Link modification' => '',
-    // 'Links' => '',
     // 'Opposite label' => '',
     // 'Remove a link' => '',
     // 'The labels must be different' => '',
@@ -522,7 +520,6 @@ return array(
     // 'CAD - Canadian Dollar' => '',
     // 'CHF - Swiss Francs' => '',
     // 'Custom Stylesheet' => '',
-    // 'download' => '',
     // 'EUR - Euro' => '',
     // 'GBP - British Pound' => '',
     // 'INR - Indian Rupee' => '',
@@ -593,7 +590,6 @@ return array(
     // 'Existing due date' => '',
     // 'Factor to calculate new due date: ' => '',
     // 'Month(s)' => '',
-    // 'Recurrence' => '',
     // 'This task has been created by: ' => '',
     // 'Recurrent task has been generated:' => '',
     // 'Timeframe to calculate new due date: ' => '',
@@ -731,7 +727,6 @@ return array(
     // 'NOK - Norwegian Krone' => '',
     // 'Show this column' => '',
     // 'Hide this column' => '',
-    // 'open file' => '',
     // 'End date' => '',
     // 'Users overview' => '',
     // 'Members' => '',
@@ -1380,4 +1375,6 @@ return array(
     // '%s moved the task #%d to the column "%s"' => '',
     // '%s moved the task #%d to the position %d in the column "%s"' => '',
     // '%s moved the task #%d to the swimlane "%s"' => '',
+    // '%sh spent' => '',
+    // '%sh estimated' => '',
 );