Remove Interval core node and redirect to Schedule Trigger node

docs/_redirects

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+/integrations/builtin/core-nodes/n8n-nodes-base.interval/   /integrations/builtin/core-nodes/n8n-nodes-base.scheduletrigger/
 /integrations/builtin/credentials/google/googlepalm/   /integrations/builtin/credentials/google/googleai/
 
 /n8n-nodes-langchain.openaiassistant.md/   /n8n-nodes-langchain.openai/

docs/integrations/builtin/core-nodes/n8n-nodes-base.interval.md

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----
-title: Interval
-description: Documentation for the Interval node in n8n, a workflow automation platform. Includes guidance on usage, and links to examples.
-contentType: integration
----
-
-# Interval
-
-The Interval node is used to trigger the workflow to run in regular intervals of time. This node is a trigger node.
-
-/// note | Examples and templates
-For usage examples and templates to help you get started, refer to n8n's [Interval integrations](https://n8n.io/integrations/interval/){:target=_blank .external-link} page.
-///
-
-/// note | Keep in mind
-If a workflow is using the Interval node as a trigger, make sure that you save and activate the workflow.
-///
-
-The Interval node has two fields:
-1. *Interval* field: This is a numerical field where you can specify the interval after which the workflow should get triggered again.
-2. *Unit* field: This is a dropdown list which allows you to select a unit for the value that was provided for the *Interval* field. This field offers the following options for its dropdown list:
-    - Seconds
-    - Minutes
-    - Hours
-
-![A workflow with the Interval node](/_images/integrations/builtin/core-nodes/interval/workflow.png)
-
-
-
-
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