Abandon guava dependency in ConfigNode

[CRZbulabula]

[codecov[bot]]

Codecov Report

:x: Patch coverage is 15.13158% with 3225 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 37.04%. Comparing base (09da138) to head (9448d3e). :warning: Report is 5 commits behind head on master.

Files with missing lines	Patch %	Lines
...oogle/common/collect/AbstractMapBasedMultimap.java	18.77%	424 Missing :warning:
.../main/java/com/google/common/base/CharMatcher.java	17.81%	346 Missing :warning:
...ain/java/com/google/common/base/Preconditions.java	17.92%	206 Missing :warning:
...java/com/google/common/cache/CacheBuilderSpec.java	0.00%	186 Missing :warning:
...ain/java/com/google/common/cache/CacheBuilder.java	0.00%	166 Missing :warning:
...a/com/google/common/collect/CollectCollectors.java	11.11%	136 Missing :warning:
...c/main/java/com/google/common/base/Predicates.java	25.78%	118 Missing :warning:
...rc/main/java/com/google/common/base/Suppliers.java	0.00%	93 Missing :warning:
.../main/java/com/google/common/base/MoreObjects.java	0.00%	92 Missing :warning:
...c/main/java/com/google/common/base/Throwables.java	8.33%	88 Missing :warning:
... and 52 more

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #16631      +/-   ##
============================================
- Coverage     38.72%   37.04%   -1.69%     
  Complexity      207      207              
============================================
  Files          4943     5219     +276     
  Lines        327383   349972   +22589     
  Branches      41582    44828    +3246     
============================================
+ Hits         126773   129630    +2857     
- Misses       200610   220342   +19732     

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