[Backport V2.21] DOCSP-50028 Remove EOL mentions (mongodb#154)

* DOCSP-50028 Remove EOl mentions

* remove old driver versions from compat

Author: lindseymoore

source/reference/driver-compatibility.txt

@@ -48,265 +48,39 @@ version.
      - MongoDB 8.0
      - MongoDB 7.0
      - MongoDB 6.0
-     - MongoDB 5.0
-     - MongoDB 4.4
-     - MongoDB 4.2
-     - MongoDB 4.0
-     - MongoDB 3.6
-     - MongoDB 3.4
-     - MongoDB 3.2
-     - MongoDB 3.0
-     - MongoDB 2.6
 
    * - 2.21
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    * - 2.20
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    * - 2.19
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    * - 2.18
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    * - 2.17
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    * - 2.16
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-     - D
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-   * - 2.15
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-   * - 2.14
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-   * - 2.13
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-   * - 2.12
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-   * - 2.11
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-   * - 2.10
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-   * - 2.9
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-   * - 2.8
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-   * - 2.7
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-   * - 2.6
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-   * - 2.5
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-.. [#ocsp] OCSP verification is implemented as of driver version 2.14.
-
-.. [#srv-polling] Polling of SRV records in sharded topologies is
-   implemented as of driver version 2.11.
-
-.. [#client-side-encryption] Client-side encryption is implemented as of
-   driver version 2.12.
 
 The driver does not support older versions of MongoDB.
 
-
 .. _ruby-compatibility:
 
 Ruby Compatibility