Remove v2Resource and v2ResourceMap

[VenelinMartinov]

No description provided.

[VenelinMartinov]

This change is part of the following stack:

• implement shim.Provider for planResourceChangeImpl #2867
  • Remove PRC Dispatch provider #2868
    • Implement shim.InstanceDiff for v2InstanceDiff2 #2869
      • Remove v2Provider and v2InstanceDiff #2870
        • Implement shim.Resource for v2Resource2 #2872
          • Remove v2Resource and v2ResourceMap #2873 ◀
            • Remove v2 Instance State #2874

_{Change managed by git-spice.}

[codecov]

Codecov Report

Attention: Patch coverage is 84.37500% with 5 lines in your changes missing coverage. Please review.

Project coverage is 67.80%. Comparing base (2513b14) to head (73d9a82).

Files with missing lines	Patch %	Lines
pkg/tfshim/sdk-v2/provider2.go	83.87%	4 Missing and 1 partial ⚠️

Additional details and impacted files

@@                       Coverage Diff                       @@
##           implement-shim-resource-for    #2873      +/-   ##
===============================================================
+ Coverage                        67.74%   67.80%   +0.06%     
===============================================================
  Files                              326      324       -2     
  Lines                            41587    41466     -121     
===============================================================
- Hits                             28173    28118      -55     
+ Misses                           11828    11765      -63     
+ Partials                          1586     1583       -3     

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