Remove support for 'try' (#53)

'try' has been removed from the upstream parser.

queries/highlights.scm

@@ -81,7 +81,6 @@
   "let"
   "panic"
   "todo"
-  "try"
   "type"
   "use"
 ] @keyword

test/corpus/functions.txt

@@ -762,86 +762,6 @@ fn trial(x, y, z) {
             value: (record
               name: (constructor_name))))))))
 
-================================================================================
-Try patterns
-================================================================================
-
-fn try_try_again(x, y) -> Int {
-  try int_x = todo
-  try _who_cares = todo
-  try file.IODevice() = todo
-  try Node = todo
-  try "hello" = todo
-  try 1 = todo
-  try 12.34 = todo
-  try #(a, b) = todo
-  try <<a:utf8, b:size(8)>> = todo
-  try [a, b] = todo
-}
-
---------------------------------------------------------------------------------
-
-(source_file
-  (function
-    name: (identifier)
-    parameters: (function_parameters
-      (function_parameter
-        name: (identifier))
-      (function_parameter
-        name: (identifier)))
-    return_type: (type
-      name: (type_identifier))
-    body: (function_body
-      (try
-        pattern: (identifier)
-        value: (todo))
-      (try
-        pattern: (discard)
-        value: (todo))
-      (try
-        pattern: (record_pattern
-          name: (remote_constructor_name
-            module: (identifier)
-            name: (constructor_name))
-          arguments: (record_pattern_arguments))
-        value: (todo))
-      (try
-        pattern: (record_pattern
-          name: (constructor_name))
-        value: (todo))
-      (try
-        pattern: (string
-          (quoted_content))
-        value: (todo))
-      (try
-        pattern: (integer)
-        value: (todo))
-      (try
-        pattern: (float)
-        value: (todo))
-      (try
-        pattern: (tuple_pattern
-          (identifier)
-          (identifier))
-        value: (todo))
-      (try
-        pattern: (bit_string_pattern
-          (bit_string_segment
-            value: (identifier)
-            options: (bit_string_segment_options
-              (bit_string_segment_option)))
-          (bit_string_segment
-            value: (identifier)
-            options: (bit_string_segment_options
-              (bit_string_segment_option
-                (integer)))))
-        value: (todo))
-      (try
-        pattern: (list_pattern
-          (identifier)
-          (identifier))
-        value: (todo)))))
-
 ================================================================================
 Let expressions
 ================================================================================