Delete superfluous imports and add quotation marks in getting-started…

….md (#2679)

Co-authored-by: Phillip Carter <[email protected]>

content/en/docs/instrumentation/python/getting-started.md

@@ -51,7 +51,7 @@ Create a file `app.py` and add the following code to it:
 
 ```python
 from random import randint
-from flask import Flask, request
+from flask import Flask
 
 app = Flask(__name__)
 
@@ -274,7 +274,7 @@ create a trace that's a child of the one that's automatically generated:
 from opentelemetry import trace
 
 from random import randint
-from flask import Flask, request
+from flask import Flask
 
 # Acquire a tracer
 tracer = trace.get_tracer("diceroller.tracer")
@@ -400,7 +400,7 @@ from opentelemetry import trace
 from opentelemetry import metrics
 
 from random import randint
-from flask import Flask, request
+from flask import Flask
 
 tracer = trace.get_tracer("diceroller.tracer")
 # Acquire a meter.