Remove stream/pipe recording

It doesn't make much sense to record non-interactive commands.

src/cli.py

@@ -66,19 +66,16 @@ def handle_unknown_action(action):
 def record_asciicast():
     asciicast = Asciicast()
 
-    if sys.stdin.isatty():
-        if options.command:
-            command = options.command
-            is_shell = False
-        else:
-            command = os.environ['SHELL']
-            is_shell = True
-
-        stdin_file = asciicast.stdin_file if options.record_input else None
-        duration = recorders.record_process(command, is_shell,
-                                            asciicast.stdout_file, stdin_file)
+    if options.command:
+        command = options.command
+        is_shell = False
     else:
-        duration = recorders.record_stream(sys.stdin, asciicast.stdout_file)
+        command = os.environ['SHELL']
+        is_shell = True
+
+    stdin_file = asciicast.stdin_file if options.record_input else None
+    duration = recorders.record_process(command, is_shell,
+                                        asciicast.stdout_file, stdin_file)
 
     asciicast.user_token = config.user_token
     asciicast.command = options.command

src/recorders.py

@@ -12,11 +12,6 @@ import time
 import tty
 
 
-def record_stream(stream, stdout_file):
-    recorder = StreamRecorder(stream, stdout_file)
-    return record(recorder)
-
-
 def record_process(command, is_shell, stdout_file, stdin_file=None):
     recorder = ProcessRecorder(command, is_shell, stdout_file, stdin_file)
     return record(recorder)
@@ -29,23 +24,6 @@ def record(recorder):
     return end_time - start_time
 
 
-class StreamRecorder(object):
-
-    def __init__(self, stream, stdout_file):
-        self.stream = stream
-        self.stdout_file = stdout_file
-
-    def run(self):
-        while 1:
-            line = self.stream.readline()
-
-            if len(line) == 0:
-                break
-
-            self.stdout_file.write(line)
-            print line,
-
-
 class ProcessRecorder(object):
     '''Pseudo-terminal recorder.