Remove remaining Pension Credit double-count of private pension income

changelog_entry.yaml

@@ -0,0 +1,4 @@
+- bump: patch
+  changes:
+    fixed:
+    - Removed duplicate parameters in Pension Credit.

policyengine_uk/parameters/gov/dwp/pension_credit/guarantee_credit/income.yaml

@@ -1,5 +1,4 @@
-description: Income sources included in income used to determine Guarantee Credit
-  entitlement.
+description: Income sources included in income used to determine Pension Credit entitlement.
 metadata:
   label: Pension Credit income sources
   name: pc_income_sources
@@ -10,7 +9,7 @@ metadata:
   unit: list
 values:
   2002-01-01:
-  - earned_income
+  - pension_credit_earnings
   - working_tax_credit
   - state_pension
   - private_pension_income

policyengine_uk/tests/policy/baseline/gov/dwp/pension_credit/pension_credit_income.yaml

@@ -1,12 +1,13 @@
 - name: All income sources are included.
   period: 2021
   input:
-    earned_income: 1
+    employment_income: 1
     working_tax_credit: 2
     state_pension: 4
     private_pension_income: 8
     capital_income: 16
     esa_contrib: 32
     jsa_contrib: 64
+    self_employment_income: 128
   output:
-    pension_credit_income: 127
+    pension_credit_income: 255

policyengine_uk/variables/gov/dwp/pension_credit/pension_credit_earnings.py

@@ -8,4 +8,4 @@ class pension_credit_earnings(Variable):
     value_type = float
     unit = GBP
     reference = "https://www.legislation.gov.uk/uksi/2002/1792/regulation/17A"
-    adds = "gov.dwp.pension_credit.income.earnings_sources"
+    adds = "gov.dwp.pension_credit.guarantee_credit.earnings_sources"