[docs] Remove invalid code line in example

[hhunter-ms]

Description

See title

Issue reference

PR will close: dapr/docs#1426

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• [ ] Code compiles correctly
• [ ] Created/updated tests
• [ ] Extended the documentation

[codecov[bot]]

Codecov Report

Merging #1127 (a6f887a) into master (6dae4e3) will increase coverage by 0.01%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1127      +/-   ##
==========================================
+ Coverage   67.16%   67.18%   +0.01%     
==========================================
  Files         170      170              
  Lines        5695     5695              
  Branches      607      607              
==========================================
+ Hits         3825     3826       +1     
+ Misses       1727     1726       -1     
  Partials      143      143              

Flag	Coverage Δ
net6	67.09% <ø> (ø)
net7	67.09% <ø> (ø)
netcoreapp3.1	67.14% <ø> (+0.01%)	:arrow_up:

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see 1 file with indirect coverage changes